Section 735 ILCS 5/9-320 - Notice by nonresident owner(a) An owner of residential real property containing more than 4 living units, who does not reside or maintain an office therein and does not employ a manager or agent who resides or maintains an office therein, shall: (1) post or cause to be posted on such residential real property adjacent to the mailboxes or within the interior of such residential real property in a location visible to all the residents, a notice of not less than 20 square inches in size bearing: (i) the name, address and telephone number of the person responsible for managing the building; and(ii) the name, address and telephone number of the company or companies insuring such residential real property against loss or damage by fire or explosion or if the residential real property is not insured, that shall be stated in the notice; and(2) within 24 hours from the time such owner is notified that any company or companies insuring such residential real property against loss or damage by fire or explosion has cancelled such insurance, post or cause to be posted in the manner provided in subparagraph (1) notice of such cancellation.(b) In lieu of the requirement for posting the notices prescribed in subsection (a) of this Section and the owner's managing agent may include such notice in a written rental or lease agreement or may give such notice by first class mail addressed to the lessee or renter.(c) Failure to give any notice required by this Section is a petty offense and shall subject the owner to pay a fine of not more than $100 per day of violation.