An Illinois Eviction — Forcible Entry anDetaineder (FED) Complaint is a legal document used by landlords to evict tenants who are occupying a rental property without permission or whose lease has expired. There are two different types of FED Complaints in Illinois: 1. Regular FED Complaint: This is used to evict a tenant from a rental unit or space who is occupying the premises without authorization or whose lease has expired. 2. Summary FED Complaint: This is used to evict a tenant from a rental unit or space who is occupying the premises without authorization or who is engaged in illegal activities or is in breach of the lease agreement. The FED Complaint is filed with the Circuit Court Clerk in the county where the property is located, and the tenant is served with a summons. The summons will contain a three-day notice to vacate, which the tenant must comply with or face eviction. If the tenant fails to comply, the landlord can then proceed with the eviction process.