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 signature(s)?This affidavit of forgery concerns University of Pennsylvania Students Federal Credit Union. Forms; Motor Vehicles; Titling or Registration. pdf. MV-13ST: Affidavit of Gift. How to write an affidavit? Does an affidavit have to be notarized? Do you know who forged your signatures? Hello. Yes, each affidavit is a separate notarial act and you would need to administer an oath or affirmation each time. GENERAL INSTRUCTIONS: Please complete and submit this form if you are a victim of identity theft and would like the Pennsylvania.