Child Support Forms ; 4-9a. This list contains current links to state divorce forms where available.Some states may have additional requirements or restrictions. These forms and instructions are available in the General Clerk's Office, Room 108, in the Nassau County. Download and complete Divorce, Child Support, and Maintenance forms from the Illinois Office of the Courts. You can find order of protection forms for any county on the Illinois Courts website. You can find divorce, child support, and maintenance forms as well. Learn about the types of alimony available in Illinois, how it's calculated, and the factors courts consider when awarding spousal maintenance. A helpful list of important court forms you may need as you complete your divorce in Illinois. When an American citizen brings their foreign spouse to the United States they fill out a Form I864, the Affidavit of Support.