The Illinois sublease agreement describes the significant aspects concerning the proper understanding of a subtenant to dwell in residence for an agreed-upon monthly payment. Situations that require the remedy of an alternate individual taking over the rights and responsibilities of tenancy for an agreed-upon compensation schedule can be aided with the help of the sublease contract. Mapped out in the paperwork is the name of the tenant and subtenant, property address, rent amount, duties, and security deposit. The sublease does not have to adhere to the original lease necessarily, although both parties must keep in mind that the original will be the superseding document. Although the arrangement is entered into by the tenant and subtenant, the signature and approval of the landlord of the property will be demanded to make the record legally enforceable.