Lyndall completed his 4th and final term as a member of the Missouri House of Representatives in early January 2019. He was first elected in 2010 and served as Chairman of the Financial Institutions, Local Government and Utility Infrastructure committees. Prior to his election to the House, he was elected Northern Commissioner of Webster County after completing a 17-year career in Wal-Mart management. The last seven of those years as store manager of his hometown store in Marshfield. Lyndall is a home builder and real estate developer in the Marshfield area. He discloses that he has no relevant financial relationships with any organization producing, marketing, reselling or distributing health care goods or services consumed by, or used on, patients relative to the content of his presentation.