For all leases governed by the Chicago Residential Landlord and Tenant Ordinance (RLTO), Section 5-12-170 requires that a landlord attach a summary of the ordinance and an interest rate summary to the lease. The City of Chicago has finally released the summary that includes the 2018 security deposit interest rate. The summary contains an English language and Spanish translation and BOTH must be given to the tenant regardless of the language used in the lease and whether or not the landlord collects a security deposit!