Elite Lawyer

About Mark Rush Williamson

Texas family lawyer Mark Williamson is the founding partner of Williamson Law Firm, with offices on North Dallas Parkway in Addison. Mark has practiced law in Texas for over three decades – since 1985 – and he’s successfully handled hundreds of cases on behalf of Texas families. Attorney Williamson has more than a quarter-century of trial experience with a particular focus on advocating for the best interests of children. He’s a father, too.

Practice Areas


University of Texas, J.D.-1985
Baylor University, B.B.A.-1982

Bar Associations

Texas State Bar
Collin County Bar Association
Dallas Bar Association

Honors & Awards

Top Attorney, Texas Monthly Magazine, 2013-2015
AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell, 2003-2018
Texas Super Lawyer, Texas Monthly Magazine, 2012-2015
Elite Lawyer Award, 2019

Professional Associations

Collin County Bar Association, 2000
Dallas Bar Association, Family Law Section, 1997
State Bar of Texas, Family Law Section, 1997

Offices / Locations

Williamson Law Firm PLLC

16633 North Dallas Parkway, Suite 325
Addison, TX 75001
Phone: 469-385-3305

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Client Reviews

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