17. TIME PERIOD OFFER Purchaser and Seller understand and agree that, unless earlier withdrawn, this offer is good until a.m. p.m. In this topic, you'll learn: Elements of a typical purchase offer.Why just about everything is negotiable at the closing stage. The court has placed the most commonly used forms on line as a resource. Please be advised that the forms detailed below are intended to be a guide. Sell your NY home 'as is' with ease! Discover Suffolk County House Buyers for a hassle-free, cash sale without repairs or agent fees. MEMORANDUM OF SALE The Purchaser's offer and agreement to purchase will be summarized in Memorandum of Sale. Offer and acceptance: both parties must clearly state what their offer is.