Create your free online lease agreement. Build a customizable rental agreement you can edit, share and sign online.An Illinois lease agreement is a prevalent contract performed during the transfer of rights related to a real estate property (apartment, condo, house, etc.). The Illinois standard residential lease agreement is a contract that creates a legally binding rental arrangement between a landlord and their tenant. Set the terms for renting property. Both the Landlord and Tenant can review and sign the Rental Agreement online, using our electronic signing tool, ezSign. Illinois residential lease agreement is available at Forms. Legal. Provide the details in the form, and the agreement can be created online. Edit, sign, and share Residential Rental Lease Agreement - Illinois online. The standard template of an Illinois rental agreement form establishes the nature of the lease while stating the required details from each party.