A buyout agreement outlines how one partner can purchase the leaving partner's shares in the collectively owned business. A partnership buyout agreement lets you plan what will happen when a partner leaves the business.Buying out a business partner doesn't have to be stressful or complicated. Read this guide to see how you can carry out the process with ease. A buy and sell agreement is a legally binding contract that spells out how and to whom a departing owner's shares will be transferred. Buying out a business partner is a complicated process. A phased buyout will occur with one spouse transitioning out of the business as liquidity becomes available; The spouses will sell the business. Once both parties have agreed to the terms of the buyout, get everything in writing, including any future payments. In this ultimate guide, we will unravel the mysterious world of buyout agreements and show you stepbystep how to navigate them like a pro. The first step in buying out your business partner is to contact your attorney.