After the tenant is served, you must fill out the Proof of Service and sign it. This guide will walk you through the types of eviction notices, how to serve them, and common mistakes to avoid.You can find eviction notices on the Illinois Courts website or use our Evict a Tenant easy form. 5-day notice (non-payment of rent). Instructionsâ–¾. In 1, enter your name and the date you served the occupants. In 2, check the box that states how you delivered the Demand or Notice. Illinois law generally requires a written eviction notice. The landlord must serve the tenant with the written notice before filing a court case. Here is a short guide on the Illinois eviction notice and complaint process, and a guide to the forms necessary to complete it. The landlord needs to download the Illinois eviction notice, fill it out, and present it to the tenant.