On August 17, Fannie Mae posted on eFannieMae.com revised versions of the Home Affordable Modification Trial Period Plan and Home Affordable Modification Agreement special purpose legal documents (Forms 3156 and 3157 respectively). Additionally, an updated Home Affordable Modification Program (HAMP) Hardship Affidavit (Selling and Servicing Guide Form 1021) was posted to eFannieMae.com on Friday, August 14. Servicers have the option of using these revised documents immediately; however, they must use them by September 30, 2009. For more information, please refer to this announcement here.