Mr. Markham attended the United States Air Force Academy on an athletic appointment before obtaining his BBA and J.D. degrees from Baylor University in 1977. After law school, he worked as a Trust Officer at Oak Cliff Bank and Trust in Dallas, Texas. In 1979, he entered private law practice in Crockett, Texas.
In 1982, Lynn became director of marketing and legal affairs for CISCO Computer Systems Company, where he established dealers in 25 states. In 1985, he was appointed to fill a vacancy in an unexpired term as the Judge of the Houston County Court At Law. Judge Markham successfully retained the position through three subsequent elections.
In 1999, he returned to private practice in Crockett, Texas. His law practice now focuses on estate planning and probate. After realizing that many of his clients were making less than optimal financial decisions, Lynn obtained his insurance and Series 65 securities licenses before becoming a Certified Retirement Counselor.
In 2019, he became a managing director of USTaxReduction.com, a team of tax reduction professionals dedicated to reducing and eliminating taxes for their clients.