R Dean Davenport Attorney at Law located at 2150 S Central Expy Suite 200, McKinney, TX 75070. Call us at (469) 352-1876. We serve the following zip codes 75070, 75071, 75069, 75072, 75013, 75035, 75454, 75002. We help you with estate planning, probate, wills, trusts and more. Collin County is home to Dean Davenport Attorney at Law who specializes in estate planning, estate guardianship, and probate law. As a member of the American Bar Association he holds a degree from Texas Tech University. He's also a member of the Collin County Bar Association, the State Bar of Texas, and the Texas Center for Legal Ethics.