Keith graduated Magna Cum Laude from Houston Baptist University in 1977, having completed his Bachelor of Science degree in Economics and Business in just 27 months. He earned his law degree at Baylor, graduating in 1979, and became Board Certified in personal injury trial law in 1984. He is a member of the Texas Bar Association, the Texas Trial Lawyers Association, the American Association for Justice, and the Houston Trial Lawyers Association. Keith is licensed to practice in the state of Texas, as well as in the Southern, Western, and Eastern Federal District Courts.
He has been a partner at Simmons and Fletcher since 1974.