The Illinois roommate agreement enlists a certification of record to establish obligations for an individual to rent a room within a dwelling along with other roommates. Registration of the information concerning the policies and protocols of the commitments is exhibited for review in the contract by all involved parties. Outlined within the document is information on the property, roommates, rent payments, utility charges assignment, rules, and regulation. An allocated paragraph covers the rules surrounding the possibility and procedure for an occupant to sublease a room upon orchestrated departure from the rental unit. For further validation, the signatures may be obtained in the presence of a licensed notary for the state of Illinois.