ACCEPTANCE DATE: ("Acceptance Date"). SELLER'S INFORMATION: Seller's Signature: Seller's Name (print):.An Illinois residential purchase agreement is a legally binding contract between the buyer and seller of a residential property. This document outlines the terms and conditions of the sale, including the purchase price, contingencies, financing details, and closing date. Seller shall also furnish Purchaser with: (i) an Affidavit of Title in customary form; (ii) a Bill of. These forms are also available in the DotLoop and DocuSign form libraries. ("Purchase Price"). 21. 4.