Most Chicago leases are covered by the Residential Landlord and Tenant Ordinance, and most tenants find out what it says only after something has gone wrong. The ordinance is unusually strong — it puts hard deadlines on the landlord and attaches real penalties when they are missed — but almost none of it happens automatically. You have to ask.
This list is the things worth doing at signing, during the tenancy and on the way out, in that order. The deposit items are first because they carry the heaviest penalty: get the deposit handling wrong and the ordinance entitles the tenant to two times the deposit plus interest.
A caveat that matters: the ordinance does not cover every unit — owner-occupied buildings of six units or fewer are the main exclusion — so confirm your building is covered before relying on any of it. Checked against the City of Chicago's own pages on 19 September 2026. This is a checklist, not legal advice; for a dispute, talk to a tenants' rights organisation or a lawyer.