765 Ill. Comp. Stat. 745 § 6

Obligation of Park Owner to Offer Written Lease. Except as provided in this Act, no person
shall offer a mobile home or lot for rent or sale in a mobile home park
without having first exhibited to the prospective tenant or purchaser a
copy of the lease applicable to the respective mobile home park, unless the prospective tenant waives this right in writing.
(a) The park owner shall be required, on a date before the date on which the lease is signed, to offer to each present and
future tenant a written lease for a term of not less than 24 months,
unless the prospective tenant waives that right and the parties agree to a different term subject to existing leases
which shall be continued pursuant to their terms.
(b) Tenants in possession on the effective date of this Act shall
have 30 days after receipt of the offer for a written lease within which
to accept or reject such offer; during which period, the rent may not be
increased or any other terms and conditions changed, except as permitted
under this Act; providing that if the tenant has not so elected he shall
vacate within the 30 day period.
(c) The park owner shall notify his tenants in writing not later
than 30 days after the effective date of this Act, that a written lease
shall be available to the tenant and that such lease is being offered in
compliance with and will conform to the requirements of this Act.
(d) The park owner shall give 90 days' notice of any rent increase and no rent increase shall go into effect until 90 days after the notice. Upon receipt of the notice of the rent increase, a tenant shall have 30 days in which to accept or reject the rent increase. If the tenant rejects the rent increase, the tenant must notify the park owner of the date on which the tenant will vacate the premises, which shall be a date before the effective date of the rent increase.
(e) The park owner may provide for a specified rent increase between the first and second years of the lease.
(f) The park owner may offer a month-to-month tenancy agreement option to a tenant not wishing to make a long-term commitment if the tenant signs a written statement acknowledging that the park owner offered the tenant a longer term lease but the tenant chose instead to agree to only a month-to-month tenancy agreement. If the tenant declines to sign either a lease or a statement acknowledging that a lease was offered, the park owner shall sign and deliver to the tenant a statement to that effect. Any month-to-month tenancy agreement must provide a minimum of 90 days' notice to the tenant before any rent increase is effective.
(g) A prospective tenant who executes a lease pursuant to this Section may cancel the lease by notifying the park owner in writing within 3 business days after the prospective tenant's execution of the lease, unless the prospective tenant waives in writing this right to cancel the lease or waives this right by taking possession of the mobile home or the lot. The park owner shall return any security deposit or rent paid by the prospective tenant within 10 days after receiving the written cancellation.
(h) The maximum amount that a park owner may recover as damages for a tenant's early termination of a lease is the amount due under the lease, less any offset or mitigation through a re-lease.
(i) A tenant in possession of a mobile home or lot who is not subject to a current lease on the effective date of this amendatory Act of the 95th General Assembly
shall be offered a lease by the park owner within 90 days after the effective date of this amendatory Act of the 95th General Assembly. Tenants in possession on the effective date of this amendatory Act of the 95th General Assembly
shall have 30 days after receipt of the offer for a written lease within which to accept or reject the offer, during which period the rent may not be increased or any other terms and conditions changed, except as permitted under this Act; provided that if the tenant has not so elected he or she shall vacate within the 30-day period.