Here is an example of what a business purchase agreement might look like. Key elements typically included in a Business Bill of Sale are: Purchase Price: The total amount the buyer agrees to pay for the business.A Business Purchase Agreement is a contract that transfers a business entity from its owner to a new buyer. Sales contracts are legally binding written agreements that govern a transaction between a buyer and a seller. A business purchase agreement should detail the names of the buyer and seller at the start of the contract. Edit, sign, and share Buy Sell Agreement Package - Florida online. No need to install software, just go to DocHub, and sign up instantly and for free.