There are 3 forgery crimes in New York. Forgery, deceive or injure another, he falsely makes, completes or alters a written instrument which is or purports to be.Free Consultation - Call 212.312. Former Manhattan Prosecutor. New York Forgery in the Third Degree is a Class "A" misdemeanor. If you possess a completed or modified written instrument you know is fake and you do so with the intent to defraud or deceive another. Federal criminal possession of a forgery device is defined as having control, custody, or possession of "any plate, stone, or other thing, or any part thereof. The longtime Mayor of Clark Township, alleging Salvatore Bonaccorso submitted false and fraudulent paperwork to nearly twodozen municipalities. Forging an online signature is possible but illegal.