LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby

LIMITED POWER OF ATTORNEY I, Timothy L. Buzby, do hereby grant power of attorney to each of Stephen P. Mullery, Christy M. Prendergast, and Anjali Desai for the sole purpose of filing Forms 3, 4, or 5 to report my transactions in Farmer Mac securities with the Securities and Exchange Commission as required by Section 16(b) of the Securities Exchange Act of 1934 and with the Farm Credit Administration (FCA) as required by regulations issued by the FCA. This Limited Power of Attorney will remain in effect until revoked in writing by me. Dated: December 6, 2012 Signature: /s/ Timothy L. Buzby
Federal Agricultural Mor... (NYSE:AGM)
Historical Stock Chart
From Feb 2024 to Mar 2024 Click Here for more Federal Agricultural Mor... Charts.
Federal Agricultural Mor... (NYSE:AGM)
Historical Stock Chart
From Mar 2023 to Mar 2024 Click Here for more Federal Agricultural Mor... Charts.