What if a business partner wants to buy out your ownership? An Irvine business lawyer helps you to understand what to do in this situation.The ability to buy out a business partner largely depends on the structure of the partnership and the terms in the partnership agreement. To buy out a business partner, take these steps: 1) Determine what you're buying, eg, customers, inventor, customers, intellectual property, etc. This guide outlines the essential procedures for buying a stake from a business partner. These include creating the motivation behind the buyout. Buying out a business partner can be done in several ways. Learn the key elements of a business partnership agreement to avoid pitfalls, ensure clarity, and protect your business partnership. A business partnership buyout agreement is a contract between partners that details the terms and conditions of a partner leaving the partnership. A Fictitious Business Name shall be filed within 40 days of first transacting business.