Acceptance: The Seller's acceptance of any order is expressly subject to Buyer's assent to each and all of the terms and conditions set forth below. Buyer. Date. â–¡ ACCEPTANCE OF OFFER BY SELLER.Seller accepts the offer of Buyer and agrees to sell on the terms and conditions set forth in the Contract. An acceptance to an offer must be made while the offer is still open. For a real estate contract to be enforceable, the agreement must be in writing.