To file a lawsuit, you must complete a Complaint form, a Summons form, as well as a Civil Division Action Cover Sheet. These forms are available in the Civil Division of the Office of the Clerk of the Circuit Court of Cook County (Clerk’s Office) in Room 601 of the Richard J. Daley Center, 50 West Washington Street, Chicago, Illinois, 60602 or at http://www.cookcountyclerkofcourt.org/NewWebsite/Forms.aspx?categoryid=11.
Also, you will have to serve the defendant either through the Sheriff’s Office or by Certified Mail. You may serve by Certified Mail if your claim does not exceed $10,000 and the defendant is in the state of Illinois (Check the box for Certified Mail on the summons.) You may refer to “How do I serve the Defendant?” below for information on serving the defendant.
NOTE: Eviction/Joint Action cases cannot be served by Certified Mail.
The Complaint and Summons forms can be downloaded HERE