70 ILCS 805/6c
The board of any forest preserve district situated in a county with a population over 600,000 may sell or lease as lessor to any person any golf course clubhouse and adjacent land up to 15 acres in size when such clubhouse is one of two clubhouses serving two contiguous golf courses owned and operated by the forest preserve district, and may enter into a lease or agreement with any person with respect to such property whereby all or part of the payments previously made pursuant to the lease or agreement are deducted from the purchase price. However, no part of the golf course or any other grounds in excess of 15 acres may be included in any such lease or sale.
In addition to any other power provided in this Section, the board of any forest preserve district may lease or sell all or part of a building used for office or administrative uses and all or part of any other real estate used for parking, access, storage, or other uses that are ancillary to the building's office and administrative uses if the board deems the building or other real estate, in whole or in part, is not then required for the district's purposes. The board may lease all or part of the building or other real estate to any individual or entity on such terms and conditions as the board may approve, and may collect rent from the individual or entity. Any such lease shall not exceed 10 years in duration and shall expressly state that a non-exempt lessee is liable for the payment of property taxes under Section 9-195 of the Property Tax Code.
70 ILCS 805/6c