The names and locations of the buyer and seller will be clearly stated in the first paragraph or two of the contract. A Texas Business Purchase Agreement will help transfer business ownership and outline the terms of the sale.AGREEMENT OF PURCHASE AND SALE from TANDY LEATHER FACTORY INC filed with the Securities and Exchange Commission. Before an offering or sale of a business opportunity in. Texas, the principal seller must register the business opportunity with the secretary of state. Tex. This article discusses the elements of buying or selling a small business in Texas, whether the business is focused on real estate or otherwise.