You have been sued in court. This affidavit is made voluntarily for the purpose of establishing the fact that my signature is a forgery. 7.Do you know who forged your signatures? These forms helpful when handling the estate of a deceased person. If you have questions, consult with an attorney. IMPORTANT - Taxpayers and practitioners can use the. Endorsement forms mean standard endorsements contained in the Endorsement Forms Section. Department's Web site to stay up-to-date on the latest changes to. An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions.