(765 ILCS 77/20)
    Sec. 20. A seller of residential real property shall complete all applicable items in the disclosure document described in Section 35 of this Act. The seller shall deliver to the prospective buyer the written disclosure statement required by this Act before the signing of a written agreement by the seller and prospective buyer that would, subject to the satisfaction of any negotiated contingencies, require the prospective buyer to accept a transfer of the residential real property.
(Source: P.A. 88-111.)