Important: The person alleging forgery. AFFIDAVIT OF FORGERY must complete this form in longhand. 1.Sworn to before me this day of , 20 . Because I would, therefore, affirm the Orders of the Court of Common Pleas of. Allegheny County (common pleas), I must, respectfully, dissent. Instructions on how to complete the "Forged Endorsement Affidavit". These forms helpful when handling the estate of a deceased person. If you have questions, consult with an attorney. An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions.