Mark Rush Williamson

PRO

Mark Rush Williamson

also known as Mark Williamson

4.9
Rating: 10.0

Licensed for 40 years

Divorce and separation Lawyer at Dallas, TX
Practice Areas: Divorce & Separation, Family, Child Custody

12222 Merit Drive, Suite 1200, Dallas, TX

Virtual Consultation Available

About Mark

Biography

The smart professional with the experience and talent to deliver results.

The smart professional with the experience and talent to deliver results.

The smart professional with the experience and talent to deliver results.

The smart professional with the experience and talent to deliver results.

Practice Areas

3

Practice Areas

Divorce and Separation 50%

Custody, property division, mediation, jury trials.

29 years

50%
Child Custody 25%

Modification, parental rights termination, adoption, grandparent custody.

25%
Family 25%

Divorce, property division, mediation, jury trials.

29 years

25%

Fees and Rates

Cost

Hourly Rates

$ 300-600 per hour


Payment Methods

  • Cash
  • Check
  • Credit Card

Awards

AV Preeminent Peer Review Rating
Client's Choice
Client's Choice
2024 2021 2019
...
+ 7

Licenses

Licensed in Texas for 40 years

State: Texas

Acquired: 1985

Eligible to Practice in Texas

No misconduct found

Location

Williamson Family Law

12222 Merit Drive, Suite 1200, Dallas, TX, 75251

mrwtexas.com

Mark Rush Williamson's Reviews

Avvo Review Score

4.9 /5.0

116 Client Reviews

Posted by Frank | January 6, 2024 | Hired Attorney

This review is from a person who hired this attorney.

Great Lawyer!!! Highly Recommended!!!

Mark is great, respectful and very knowledgeable about his practice. Before I hired Mark, I felt very overwhelmed with how to handle the divorce and what to expect. Mark guided me every step of the way, and took a lot of the stress out of the whole process for me. He was there to answer any and ...all questions I had. He is very quick to respond via email with any concerns I had. He is very confident in his work and it shows. I was very impressed with the way he treated and respected my case. Mark worked very fast and very diligently on my case as soon as I hired him. Mark definitely made the divorce go very smooth, far beyond what I was expecting. His concern for his clients case and well-being was very well received. I highly recommend Mark R. Williamson if you need help with divorce and separation. He's a very knowledgeable professional who truly cares for his clients.

Posted by anonymous | January 4, 2024 | Hired Attorney

This review is from a person who hired this attorney.

Excellent representation

I am truly great full for the Williamson Law Firm! Communication was spot on throughout the entire case. The firm was respectful and professional of all parties in this case and they treated my case as if it were their own. We were able to achieve our goals in a timely manner. Again thank you for r...epresenting me in my case.

Posted by Airam | October 27, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Excellent Family Law Attorney Who Gets Results

I highly recommend Mark Rush Williamson. He represented me in my child support and custody case and did an outstanding job. From the very beginning, he was professional, patient, and understanding of my situation. He explained every step clearly, kept me informed, and fought hard to make sure my righ...ts and my child’s best interests were protected. Thanks to his hard work and attention to detail, we won the case — I was granted sole managing conservatorship, and child support enforcement was finally handled after years of struggle. I truly appreciate how he believed in me and made me feel supported throughout the entire process. If you need a strong, honest, and dedicated family law attorney, I can’t recommend Mark enough.

Posted by anonymous | June 27, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Excellent

Mark is exceptional. Had a very good experience working with him. Knowledgeable, organized and personable.

Posted by Breona | June 27, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Mark's The Man!

I am very happy with my experience working with Mark Williamson. From the very beginning—during our initial consultation—I felt heard, supported, and confident that I was in capable hands. Throughout the process, whether it was answering one-off questions or preparing for court, Mark was consistently... knowledgeable, professional, and reassuring. He’s extremely informed about family law and carried himself with confidence and calm in every interaction, which helped ease a lot of my anxiety. He took the time to explain everything clearly and always made sure I understood what was happening every step of the way. My final hearing went smoothly, and I truly feel like I had the best advocate in my corner. If you're looking for someone who is both sharp and supportive, I highly recommend Mark Williamson.

See All Client Reviews

Mark Rush Williamson's Lawyer Endorsements

Endorse Mark
Brian Michael Andrade headshot
Brian Andrade

Family lawyer | Dec 12

Relationship: Opposing Counsel on matter

"Mark is a solid professional lawyer. He works hard for his clients and knows the law,"

James Durrell Padgitt III headshot
James Padgitt

Family lawyer | Feb 14

Relationship: Fellow lawyer in community

"I have known Mr. Williamson for many years, and have had cases with him, and against him. He is poised, firm, intelligent, an excellent communicator and exceptional in the courtroom. I highly endorse this attorney."

J. Brantley Durrett III headshot
J. Durrett

Family lawyer | Sep 15

Relationship: Friend

"I endorse Mark Rush Williamson. I have know him for over 35 years. He is a man of character and a skilled advocate for his clients. Hire him before you spouse does."

Jeffrey Lee Fletcher headshot
Jeffrey Fletcher

Family lawyer | Sep 17

Relationship: Other

"I endorse this lawyer. Top Gun. Top Guy."

Gerald Allen Tadlock headshot
Gerald Tadlock

Divorce and separation lawyer | Dec 16

Relationship: Opposing Counsel on matter

"I highly endorse Mark Williams. We have had a case opposite each other, and he worked hard to resolve tough issues. Mark is a great negotiator who puts his client’s interests first."

Kathryn Lanigan Pruitt headshot
Kathryn Pruitt

Divorce and separation lawyer | Jun 24

Relationship: Opposing Counsel on matter

"Mark is an extremely intelligent, creative and aggressive advocate. He will not back down from a tough case, and he is at home in the courtroom. I endorse this lawyer."

Michael S. Waddington headshot
Michael Waddington

Family lawyer | May 23

Relationship: Fellow lawyer in community

"I endorse Mark. He is a highly skilled attorney that is well respected in the legal community."

Curtis W. Harrison II headshot
Curtis Harrison

Family lawyer | Jan 06

Relationship: Opposing Counsel on matter

"I endorse this lawyer. I have drawn several cases as opposing counsel to Mark over the last few years and have found him to be both an excellent advocate for his client and a man of integrity."

Sminu Peter headshot
Sminu Peter

Family lawyer | May 22

Relationship: Opposing Counsel on matter

"I had a case against Mr. Williamson in 2011 and in all my dealings with Mark I found him to be an extremely intelligent, tough, and well prepared attorney that definitely knew his stuff. I'll always remember that despite the years of experience he had on me, he treated me with respect throughout the process. Although tough in the courtroom, his demeanor with fellow lawyers behind the scenes was exactly how it should be. Mark knew when to be diplomatic and also when to flex his legal muscles. I learned a lot going up against Mr. Williamson, and even modeled some of my own practice methods after his. In addition, his office staff was always unbelievably courteous and helpful, even though we were adversaries. I highly recommend Mark Williamson to anyone seeking a family law attorney, and to be honest I'd probably choose him if I ever needed a family attorney myself."

Eric Stephen Lafleur headshot
Eric Lafleur

Family lawyer | Apr 16

Relationship: Opposing Counsel on matter

"I've tried a case against Mark and found him to be a tenacious (distressingly so, for me as opposing counsel) and skilled advocate for his client. Anyone looking for an attorney to represent them in a family law matter would do well to have Mark in their corner."

John Bruce Schorsch Jr. headshot
John Schorsch

Divorce and separation lawyer | Apr 09

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Craig A. Jackson headshot
Craig Jackson

Divorce and separation lawyer | Mar 09

Relationship: Opposing Counsel on matter

"Having practiced divorce law for over 16 years, I have had the opportunity to tangle with some of the best lawyers in the DFW area as well as some of the worst. I certainly am not itching to be divorced from my own wife, but if it were to happen, Mark would be on the short list of lawyers to whom I would turn to handle my own affairs."

Robert Stephen McAngus headshot
Robert McAngus

Divorce and separation lawyer | Mar 08

Relationship: Fellow lawyer in community

"I endorse this lawyer. Mark is a phenomenal lawyer with an exceptional reputation in the Dallas/Ft. Worth metroplex. He goes above and beyond to help his clients."

Elizabeth Durso Branch headshot
Elizabeth Branch

Family lawyer | Nov 17

Relationship: Fellow lawyer in community

"Mark is a tough litigator and a knowledgeable attorney."

Andrew Paul Turner headshot
Andrew Turner

Child custody lawyer | Jan 13

Relationship: Opposing Counsel on matter

"Mark is a tremendous lawyer. I know from experience. He whipped me pretty good, but I learned from the experience, and I am a better lawyer for it. To be the best you must learn from the best."

Gary Michael Ashmore headshot
Gary Ashmore

Family lawyer | Jul 30

Relationship: Opposing Counsel on matter

"I endorse this lawyer. I have known Mark for many years and had the opportunity of working with him as opposing counsel on a case. Mark is always professional and his knowledge of Family law is exceptional. I would recommend Mark to anyone who has a Family Law need."

Thomas Albert Greenwald headshot
Thomas Greenwald

Family lawyer | Dec 08

Relationship: Fellow lawyer in community

"Mark Williamson is an exceptional attorney. He is a fine litigator and he also knows when a case needs to be settled. I recommend Mark without reservation."

Christopher Michael Schmiedeke headshot
Christopher Schmiedeke

Family lawyer | Dec 08

Relationship: Opposing Counsel on matter

"Mark Williamson is an excellent lawyer and is respected by his peers. He handles every case with a personal touch that his client's seem to cherish. I have heard nothing but positive things about his relationships with clients and I know from personal experience that he is a skilled adversary. I recommend Mark to anyone with a family law matter."

Lisa E. Mcknight headshot
Lisa Mcknight

Family lawyer | Aug 08

Relationship: Opposing Counsel on matter

"Mark is an excellent attorney. He has been on the other side of several cases and is tenacious is highly professional."

Deborah Mackoy headshot
Deborah Mackoy

Family lawyer | May 27

Relationship: Fellow lawyer in community

"I enthusiastically endorse this lawyer's work. I have worked opposite Mr. Williamson in a high conflict family law case and found him to be trustworthy and very capable. He represents his client's well, has an excellent command of the law and is a good trial lawyer!"

View All Endorsements
Rita M. Boyd headshot
Rita Boyd

Divorce and separation lawyer

Eric Benjamin Klocke headshot
Eric Klocke

Divorce and separation lawyer

Mary Beth Atkins Sullivan headshot
Mary Sullivan

Divorce and separation lawyer

Amber K. Shemesh headshot
Amber Shemesh

Divorce and separation lawyer

Steven Walter Bruneman headshot
Steven Bruneman

Family lawyer

Patrick Allen Wright headshot
Patrick Wright

Divorce and separation lawyer

Eric D. Beal headshot
Eric Beal

Divorce and separation lawyer

Krista Balekian Hayes headshot
Krista Hayes

Divorce and separation lawyer

Lisa Gayle Garza headshot
Lisa Garza

Divorce and separation lawyer

Edward D. Saldaña headshot
Edward Saldaña

Family lawyer

James Durrell Padgitt III headshot
James Padgitt

Family lawyer

Jeffrey Lee Fletcher headshot
Jeffrey Fletcher

Divorce and separation lawyer

Steven M. Strong headshot
Steven Strong

Business lawyer

Alma Rivera Benavides headshot
Alma Benavides

Child custody lawyer

Jody L. Johnson headshot
Jody Johnson

Family lawyer

Stacy Arnold Dunlop headshot
Stacy Dunlop

Family lawyer

Patricia D. Keane headshot
Patricia Keane

Family lawyer

Beverly Storey headshot
Beverly Storey

Divorce and separation lawyer

George R. Bienfang headshot
George Bienfang

Family lawyer

Kathryn Lanigan Pruitt headshot
Kathryn Pruitt

Divorce and separation lawyer

Experience

Rating:  10.0 (Superb)

Honors

2025

Super Lawyer, Super Lawyers

2024

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell

2024

Super Lawyer, Super Lawyers

2023

Texas Super Lawyer, Texas Monthly Magazine

2023

Super Lawyer, Super Lawyers

2022

Super Lawyer, Super Lawyers

2021

Super Lawyer, Super Lawyers

2020

Super Lawyer, Super Lawyers

2019

Super Lawyer, Super Lawyers

2015

Super Lawyer, Super Lawyers

2014

Super Lawyer, Super Lawyers

2013

Super Lawyer, Super Lawyers

2012

Super Lawyer, Super Lawyers

2005

Super Lawyer, Super Lawyers

2004

Super Lawyer, Super Lawyers

Work Experience

2021 - Present

Partner, Williamson Family Law, PC

2001 - 2021

President and founder, Williamson Law, PLLC

Associations

2000 - Present

Collin County Bar Association

1997 - Present

Dallas Bar Association, Family Law Section

1997 - Present

State Bar of Texas, Family Law Section

Sample of Legal Cases

Brennan v. Cedeno 14th Court of Appeals-Fort Worth

Overruled in client's favor, remanded back to trial court.

In Re A.B.A.T.W Dallas 5th Court of Appeals

Appeal court ruled in client favor.

See More Legal Cases

Education

1985

University Of Texas

JD - Juris Doctor

1982

Baylor University

BBA

Languages

English

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

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  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution