The Model Asset Purchase Agreement with Commentary is the most comprehensive resource available for negotiating and documenting an asset purchase. THIS PURCHASE AND SALE AGREEMENT, (the "Agreement") is made and entered into this _____ day of.The Model Asset Purchase Agreement and commentary refer to the Buyer and Seller as single "entities". Here is an example of what a business purchase agreement might look like. Office of the Inspector General (OIG). The Government Finance Officers Association of the United States and Canada presented a.