Cook County offers renters more protection than most of the country. The Just Housing Amendment requires landlords to make an individualized assessment before rejecting an applicant over a criminal record, and bars them from considering most convictions older than three years. Chicago's Residential Landlord and Tenant Ordinance adds further procedural requirements. None of that, however, restricts credit-based or eviction-based denials — the Just Housing Amendment covers criminal history specifically. An applicant with a clean record but a 540 credit score and a prior filing is still routinely denied.
That is the gap this program is built for. Nothing about your record changes — instead, your record stops being the thing under review. When the applicant on the lease is a company with its own credit file and lease references, the automated screen that would have rejected you never runs against your name.