The lease agreement should have a full and complete description of the property that is being included as part of the lease. A lease is a legal arrangement between you and a landlord that outlines all the details of your relationship and responsibilities to each other.An Illinois lease agreement is a prevalent contract performed during the transfer of rights related to a real estate property (apartment, condo, house, etc.). In Chicago, standard lease agreements are made up of many parts that all need to comply with local ordinances and protect you from legal issues. For an Illinois lease agreement to be valid and enforceable under the law, there are certain clauses that must be included. Our Illinois lease agreement template helps landlords and tenants create clear, compliant rental agreements, covering key terms like rent and security deposits. Use this template to rent out a residential property for a fixed period of typically one year. This agreement includes the most essential and common clauses. Are you a new landlord? How to fill out the Illinois Residential Lease Agreement Guidelines?