LIMITED SIGNATORY POWER

By this Limited Signatory Power the undersigned authorizes and designates each of Suzanne A. Barr, Judith C. Dunn,
Stephen H. McElhennon and Veronique K. Fine, each with full power of substitution, to execute and file on
behalf of the undersigned all Forms 3, 4 and 5 (including any exhibits, attachments and amendments thereto)
that the undersigned may be required to file with the Securities and Exchange Commission as a result
of the undersigned's ownership of or transactions in securities of Fannie Mae. The undersigned further authorizes
and designates each of Suzanne A. Barr, Judith C. Dunn, Stephen H. McElhennon and Veronique K. Fine to execute and
file on behalf of the undersigned a Form ID, and any amendments thereto, to facilitate the foregoing. The authority of
Suzanne A. Barr, Judith C. Dunn, Stephen H. McElhennon and Veronique K. Fine under this Limited Signatory Power shall
continue until the undersigned is no longer required to file Forms 3, 4 and 5 with regard to his or her ownership of or
transactions in securities of Fannie Mae, unless earlier revoked in writing. The undersigned acknowledges that
Suzanne A. Barr, Judith C. Dunn, Stephen H. McElhennon and Veronique K. Fine are not assuming, nor is Fannie Mae
assuming, any of the undersigned's responsibilities to file Forms 3, 4 and 5 or otherwise comply with any related laws
or regulations.

This Limited Signatory Power revokes any Signatory Power or Power of Attorney the undersigned has previously signed with
respect to Forms 3, 4 and 5, and Form IDs, that the undersigned may be required to file with the Securities and Exchange
Commission as a result of the undersigned's ownership of or transactions in securities of Fannie Mae.

Date: May 20, 2014
Signed: /s/ Joseph J. Grassi III