Under Illinois law, forgery is generally considered a Class 3 felony. Forgery is a type of white collar, non-violent crime.It usually involves deceiving another person to gain monetary benefit of some sort. Forgery is generally a white-collar, non-violent crime; the harm involved tends to be monetary. Our Chicago forgery lawyer has over 15 years of success to bring to your case. Call our team now for a free consultation. Need a Chicago Forgery Attorney? Call a Cook County Forgery Defense Lawyer from The Davis Law Group, P.C. today at (847) 390-8500. Illinois law punishes forgery in three different classes. A Class 3 felony applies to most circumstances of forgery.