Trusted Legal Experience. Real-World Guidance.
You don’t need a cheerleader—you need an attorney who knows the law, tells you the truth, and helps you move forward. Karen Marvel brings decades of courtroom experience, a practical mindset, and a deep respect for every client she represents.
Board Certified in Family Law
As one of less than 1% of Texas attorneys to achieve Board Certification in Family Law, Karen Marvel exemplifies legal excellence. This prestigious distinction reflects her deep knowledge, proven skill, and unwavering dedication to her clients.
Experienced Trial Lawyer
With over 34 years of experience in family law, Karen Marvel has tried cases across Texas—from San Antonio to Houston to El Paso—earning landmark victories, including in the Texas Supreme Court. Her unmatched expertise positions her as a trusted advocate for families navigating complex legal challenges.
Special Need Advocacy
Karen Marvel is deeply committed to supporting families with special needs children or young adults. Beyond her legal expertise, she is an active volunteer in the special needs community, offering compassionate guidance tailored to the unique needs of these families.
Child Support Enforcement
It’s never too late to secure the support your family deserves. Karen Marvel is a recognized authority on child support enforcement in Texas, frequently presenting at legal education events statewide. Let her help you recover past-due child support with unmatched expertise and dedication.
Mediation
Mediation InfoKaren mediates cases to help people resolve their differences on their own terms. A mediator helps people find solutions to their lawsuits.
Karen's mediation information and calendar are here:
Explore Our Services
From custody battles to asset division, we offer guidance tailored to your situation—always with clarity, compassion, and a focus on outcomes.
Every Case Deserves Strategic, Ethical Advocacy
We get it—this is stressful. We're here to simplify the process and help you make informed, confident decisions.
Compassionate Guidance
Thoughtful support without the sugarcoating.
Custom Legal Solutions
Because no two families—or cases—are alike.
Experience That Delivers
From district courts to the Texas Supreme Court, our results speak for themselves.
What Clients Say About Working with Marvel Law Group
Karen Marvel was incredibly kind, knowledgeable, and helpful during a very stressful time for our family. Even though she wasn’t able to directly take our case, she took the time to listen, guide us in the right direction, and connect us with someone who could help. She was compassionate, professional, and generous with her time — and she didn’t even charge us for the consultation. It’s rare to find someone so genuinely caring and willing to help people without expecting anything in return. We are so grateful for her guidance and would highly recommend her to anyone needing legal assistance.
From the moment I first contacted The Law Office of Karen Marvel, my experience was nothing short of exceptional. Dealing with legal matters, particularly those involving child possession, can be incredibly stressful, but the entire team, and specifically Karen Marvel, transformed that anxiety into confidence. What truly sets this firm apart is their dedication to clarity and communication. Attorney Karen Marvel did not just present the legal facts; she acted as a true advisor, breaking down complex concepts into understandable, actionable steps. They ensured I understood the risks and opportunities at every juncture, giving me the tools to make informed decisions without ever feeling rushed or pressured. Throughout the process, my concerns were always met with genuine empathy. This firm operates with a high degree of personal integrity, which is a massive comfort during difficult times. Phone calls and emails were returned promptly—often within the hour—making me feel like a priority, not just another case file. The professional outcome was outstanding; they successfully navigated achieving a favorable settlement in less time than anticipated. Beyond the positive result, the level of organization was flawless. All documentation was managed meticulously, and deadlines were met with absolute precision. If you are looking for a law office that combines unparalleled expertise with compassionate client service, I wholeheartedly recommend The Law Office of Karen Marvel. They don't just manage cases; they build trust. Thank you, Karen Marvel, and the entire staff, for your incredible work.
Karen is phenomenal. I credit her for protecting my child and saving her life. She is expert level, always has a plan and quick witted. She knows her craft and exactly what our options are every step of the way. She is strong against any and all adversity. She is compassionate. She is worth every penny. She is the best of the best. I am beyond grateful. I highly recommend Karen.
Karen Marvel is a phenomenal mediator. She came prepared with visual charts that helped my client focus on key issues in a divorce that felt overwhelming. Her ability to break things down clearly while keeping the atmosphere calm (and even humorous at times) made a difficult day much easier. Karen is thorough, insightful, and knows family law inside and out. Highly recommend her for complex or emotionally charged cases—she brings clarity and confidence to the process.
No one realizes that special needs parents have a lifetime of legal issues to go through. Karen Marvel not only answered all of my questions but she also made sure I knew what steps I needed to take that were necessary now and in the future. Someone who charges 500 for a consult will not waste your time and I’m grateful for her expertise, guidance and advice. If you have a child with special needs you need an attorney that knows the law specifically for our situations and Karen Marvel is it. Don’t waste your time and money elsewhere I’ve done that and here I am again needing legal assistance. I’m just glad I found this attorney and I won’t need to look elsewhere.
Mrs. Karen Marvel is incredible! I had a sticky family law issue and called her for assistance. She found an easier, quicker way to accomplish my goal. She held our hands through the whole thing and made it a stress-free, even enjoyable experience. We left court smiling. Also, we got to attend court via zoom. Mrs. Marvel knows Texas law inside out and she knows the court system very well. She's a true expert. I can't say enough nice things about her, and also her staff. She and her staff are very responsive and helpful.
Mrs. Marvel and her team, Adriana and Faith, were absolutely amazing through the termination of rights and adoption process. I had no idea what to expect but they made this whole process seamless. I am forever grateful to them for assisting us through this journey.
After 38 years and 5 months i received my first child support payment Thanks to the Marvel Law Firm of San Antonio, TX David L. Mitchell of Iowa
Karen Marvel is one of the most respected and brilliant family law lawyers in Texas. She truly cares about her clients and will always go above and beyond for them.
Karen and her team are very professional and extremely knowledgeable when it comes to family law. Karen was able to resolve my issue fast and cost effectively. I highly recommend consulting Karen before choosing another attorney.
Impressed by the professionalism of this firm. Amazing staff.
The team at the Marvel Law Group was super helpful and effective! They responded promptly to any questions or concerns. I highly recommend them for any family law matters!
We’ve heard the old saying “ You get what you pay for” right? Well I’m here to tell you that not only do you get a professional team on every aspect of law but you get a team that cares in the deepest way. It was a long journey but Mrs Marvel, Faith, and Adriana, did everything possible to make it the best one. I am forever thankful. Mrs. Marvel truly lives up to her name.
Thanks for helping with a sensitive matter.
Karen Marvel is an extremely competent and well educated lawyer whom I retained 07/22/2022 for a very contentious and prolonged divorce which began in August 2019. Upon my first visit, she was very professional, very knowledgeable, and compassionate towards what I had been going through in the last 3 1/2 years. She offered much knowledge in regards to my case, by giving me hope for closure. She often would schedule a phone conference to help me better understand my case and offer the best economical way to handle each situation. I can see why she was selected to Super Lawyers for 2008-2023 not only by her peers, but for all of her achievements throughout her legal practice. She exemplifies this same professionalism with her office staff as Faith Ramirez her paralegal shares her same values and competency. I highly recommend Mrs. Karen Marvel. Gina Marie Zuercher
What areas of family law do you specialize in?
We handle child custody, child support, high-net-worth divorce, mediation, and special needs family cases, providing compassionate, tailored solutions to protect your family’s best interests.
How does mediation work at Marvel Law Group?
Mediation offers a collaborative approach to resolving disputes without going to court. Karen Marvel guides families toward agreements that prioritize relationships and long-term solutions.
Can I collect past-due child support in Texas?
Yes, it’s never too late. Karen Marvel is a recognized authority in child support enforcement, helping families recover the support they deserve across Texas.
Why choose a board-certified family lawyer?
Board certification reflects expertise, experience, and dedication. Karen Marvel is among less than 1% of Texas attorneys with this distinction, ensuring exceptional legal representation for your family.
Do you work with families of children with special needs?
Absolutely. We’re honored to represent special needs families, offering compassionate guidance tailored to their unique legal, financial, and personal challenges.
