To buy out a business partner, take these steps: 1) Determine what you're buying, e.g. , customers, inventor, customers, intellectual property, etc.In this guide, we will explain what buying out a business partner means, how to prepare to buy out a business partner, and more. A buysell agreement, also known as a buyout agreement, outlines the terms for buying out a partner's share of the business. The ability to buy out a business partner largely depends on the structure of the partnership and the terms in the partnership agreement. A buy sell agreement is a legally binding agreement between business partners that explains the process of events after a partner leaves the business. You need a partnership agreement, limited liability agreement, or shareholder's agreement depending on the type of business entity you have. Your Contract Lawyer can draft and review your custom partnership agreement contract. Request a customized consultation or call us today to get started. Once the terms of the buyout are agreed upon, you will need an agreement memorializing the understanding you and your partner have come to.