Williamson Family Law is a Full-Service Family Law Practice in Dallas.

We have handled hundreds of family law cases in Dallas.

The attorneys at Williamson Family Law have extensive experience with family law cases. This has allowed them to refine their their legal skills and deepen their understanding of the issues that matter the most to family law clients.

Family related issues can be complex, and the law is constantly changing. Because of this, you need an attorney with extensive legal knowledge. Our attorneys can represent you both in and out of the courtroom.

We provide the following services to our clients:


Our skilled Texas adoption attorneys help families overcome the obstacles and finally realize their adoption dreams.

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In Texas, there are real challenges to spousal maintenance. Texas courts consider several factors to calculate spousal support.

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Child Custody

Child custody disputes can become highly charged emotionally, but the seasoned family law attorneys at Williamson Family Law are ready to help.

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Child Support

When parents divorce, a legal child support arrangement must be created and enforced to ensure that the couple’s child or children continue to be cared for properly.

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We have substantial experience in resolving divorces and divorce-related disputes through both mediation and litigation.

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Divorce for Professionals

Professionals have unique issues when it comes to divorce. We represent doctors, dentists, therapists and, yes, lawyers going through divorce.

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Grandparents' Rights

For over 25 years, we have helped grandparents get time with their grandchildren, sometimes even full custody.

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Parent Relocation

A parent relocation case happens when a primary caregiver wants or needs to move away far enough to change the court-ordered joint custody arrangement.

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We can assist you if you need to determine paternity. Then, we will help you get the solutions you need, from financial support to custody and visitation.

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Today, marital property agreements (i.e. prenuptial and postnuptial agreements) are commonplace.

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Property Division

In a divorce, the fair and equitable division of marital assets is imperative. We routinely fight for justice in difficult, contested divorce cases.

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Mark Rush Williamson guides clients through complex family law issues.

In his more than 35 years as a practicing attorney, Mark has guided many Texas residents through complex family law issues. He keeps his client base small to provide personal attention to each client and work toward the best possible resolution to their unique cases.

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Mark has been recognized by his peers & clients.

Super Lawyers

Super Lawyers 2004-2005,
2012-2014, 2019-2023


Top-Rated Lawyer,
AVVO 2012 – 2022

Texas Lawyer

Top Rated Lawyers, Texas Lawyer
Magazine 2013 – 2021

Mark will work toward the best possible resolution for your unique case. Book a consultation today.