An agreed-upon value in a buy-sell agreement; 2. A buysell agreement is an enforcement contract between business partners.Sell agreement or buy and sell agreement in Florida is commonly part of an LLC operating agreement or corporate shareholder agreement. Here is an example of what a business purchase agreement might look like. This guide outlines the essential procedures for buying a stake from a business partner. These include creating the motivation behind the buyout. Explore essential tips for obtaining lease approval from landlords during the sale of a business in South Florida.