When you are finished, you can print your completed form. All Illinois Courts must accept these forms.Scroll down below the chart for important information on how to fill out these forms. The forms suite includes the following: 1. NOTICE OF TERMINATION FOR NON-PAYMENT OF RENT. 2. Illinois law requires the Cook County Sheriff to enforce evictions in Cook County. The only entity that may evict a tenant is the Cook County Sheriff. Step 1: Give your tenant a Notice and wait the amount of time stated in the Notice. Org, in our offices and on the Illinois State Approved forms. If you do not fill out this form your eviction will not be scheduled.