1. The sublessee shall be liable for the full rent of the sublessor in the amount of. Wondering how to fill out a standard rental contract?Leases is an extensive subject that covers a variety of topics, including vacancy leases, renewal leases, security deposits, roommates, subletting, and more. Forms for Renting Residential Property. Cook County Residential Tenant Landlord Ordinance. On this page are descriptions of the various forms that landlords might encounter when participating in the HCV program. Tenant signed a lease, paid security deposit and prorated first month's rent. Four days later she wants out of the lease. The Cook County RTLO provides renters' rights and landlord protections to Cook County suburban residents.