The partner buyout agreement provides the necessary paperwork to define equity value and what is fair in buyout negotiations. Buying out a business partner is a complicated process.You may use the conventional partnership buyout calculation to estimate the value of your partner's share in the business. The agreement should specify how you will replace partners should they leave, as well as how to handle disputes between partners. This guide outlines the essential procedures for buying a stake from a business partner. These include creating the motivation behind the buyout. General Information. Physical Address: 10567 Main Street Cemetery.