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?Must be at least 18 years old. 2. An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions. INSTRUCTIONS: Make sure the involved accounts are closed so no further fraudulent activity will occur. Download Utah Affidavit of Identity template, modify and send for signing using BoloForms Signature. Find a national federal court form. National court forms can be used in all federal courts. There are 5 steps to changing your legal name or sex.