About McMahon Dean, PLLC
McMahon Dean law firm in Dallas was founded with one mission: to fight for injured clients with skill, honesty, and relentless determination. Unlike many firms led by attorneys nearing retirement, our partners bring a fresh yet proven approach to personal injury law. We combine decades of trial experience with modern strategies to serve clients across Dallas, Fort Worth, and communities throughout Texas and Oklahoma.
Our Story and Values
From East Texas roots to the heart of Dallas, attorneys Cameron Dean and Cullen McMahon built this firm on a promise to put clients first. Their vision was clear; create a practice that feels personal, not like a high-volume factory. That philosophy guides everything we do.
Our Core Values:
- Clients First - Every case matters, every client is treated with respect.
- Unprecedented Honesty - Straightforward advice, never empty promises.
- Integrity Always - We fight hard but never cut corners.
Our Team
W. Cullen McMahon
Principal & Co-Founder
With nearly two decades of trial experience, Cullen McMahon has represented clients in high-stakes personal injury and commercial litigation across Texas and Oklahoma. Licensed in both states, he is known for his courtroom skills and relentless advocacy.
Cameron E. Dean
Principal & Co-Founder
Cameron Dean has tried more than 70 cases to verdict, bringing unmatched trial experience for someone in his 30s. He focuses primarily on personal injury cases, fighting for accident victims who need strong representation against powerful insurers.
A.B. Steinberg
Trial Attorney
A.B. Steinberg is a lawyer dedicated to fighting for the rights of seriously injured individuals. With aggressive advocacy and strategic litigation, A.B. brings passion and precision to his cases, ensuring clients receive the justice and compensation they deserve.
Emily Chen
Paralegal
Why We're Different
In a competitive Dallas personal injury market, McMahon Dean stands apart. Many local law firms rely on large ad budgets and high-volume caseloads, but we take the opposite approach. Our attorneys are younger, sharper, and more connected to modern trial tactics. We bring energy, technology, and a willingness to go to trial when it means better results for our clients.
Community and Recognition
While some firms measure success by billboards, we measure it by impact. Our attorneys are active members of the Texas and Oklahoma Bar Associations, and we remain committed to serving working families across the region. Whether in Dallas County, Collin County, or Oklahoma City, our focus stays on results that change lives.
Office Location & Service Area
Our office is centrally located at 4310 N. Central Expressway in Dallas, just minutes from downtown and near the historic George Allen Courthouse. From here, we represent clients throughout Texas-including Houston, Austin, San Antonio, and Fort Worth-as well as across Oklahoma. Virtual consultations and travel are always available to meet clients where they are.
Testimonials
"I do not refer cases to many lawyers because I want to make sure that the clients are properly cared for and that the attorneys are willing to try the case if necessary. Cameron and Cullen will do both! They will care for you and leave no stone unturned in their pursuit of justice."
- Caleb M.
"I have personally worked with both Cullen and Cameron over the years. If you are looking for lawyers that provide excellent legal representation with a caring, personal approach - look no further than McMahon Dean, PLLC."
- Ben D.
"Honestly I will never be able to put into words what Mr. McMahon did for me. I lost a horse due to a preventable equipment malfunction due to lack of integrity of a company. He listened to me when others found my case “too unique”, fought for what was right and always stayed in touch so I knew what to expect. At the end of the day it’s not about the money, it’s about holding people accountable for things that cause others harm and I am so grateful to have McMahon for that."
- Alissa B.
"Too many good things to list after speaking with Cameron Dean. Very kind, honest, & professional. Very refreshing!"
- Becky H.
Ready to Help: Contact Us
If you've been injured, the attorneys at McMahon Dean are ready to help. Our Dallas personal injury lawyers work on a contingency fee basis, meaning you never pay upfront costs. Contact us today for a free consultation and let us fight for your future.
