Get a comprehensive understanding of Ohio real estate purchase and sale agreements with our indepth overview and free template. For a sample pro-buyer master sale of goods agreement, see.Standard Document, Sale of Goods. Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. A For Sale By Owner contract Ohio must include: 1. The Purchase Price, 2. A sales contract is drawn up when a seller accepts an offer from a buyer. Listing the property for sale and filling out the disclosure paperwork. Marketing the house. Sending potential sellers a home valuation offer shows them that you are ready to officially start the process of selling their home.