765 ILCS 745/22
A park owner may, any time rent is overdue, notify the tenant in writing that unless payment is made within the time specified in the notice, not less than 5 days after receipt thereof, the lease will be terminated. If the tenant remains in default, the park owner may institute legal action for recovery of possession, rent due and any damages.
If the tenant breaches any provision of the lease or rules and regulations of the mobile home park, the park owner shall notify the tenant in writing of his breach. Such notice shall specify the violation and advise the tenant that if the violation shall continue for more than 24 hours after receipt of such notice the park owner may terminate the lease.
If the tenant breaches any provision of the lease or rules and regulations of the mobile home park, the park owner shall give the tenant written notice specifying in writing the reason for any fine that may be imposed on the tenant. As used in this Section, "fine" does not include fees that are imposed on a tenant for services or products provided by the park owner to the tenant. If a fine is imposed on a tenant, the following applies for 45 days after written notice of the fine is delivered to the tenant:
Acceptance of a rent payment shall not be construed as a waiver of an unpaid fine.
765 ILCS 745/22