Please sign the Complaint form. Illinois Legal Aid Online provides a guided interview called an Easy Form that will help you fill out the forms.Complaint - Verified. To learn how to fill out the form and file it with the court, read the How to Prepare and Send an. For more information about going to court including how to fill out and file forms, call or text Illinois Court Help at 833-411-1121 or go to ilcourthelp.gov. Not sure what form you need to fill out? Filing a civil case is a four -part process: 1) open the case, 2) file the complaint, 3) file the civil cover sheet, and. 4) file the attorney appearance. If you are an attorney and wish to file any paperwork in the 18th Judicial Circuit Court, you must have a DuPage County attorney number. File it with this form.