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Our Associates

When you hire MAS Law, you hire a team of Richardson attorneys who understand the challenges you face and what it takes to overcome them. We bring decades of experience and recognition from the legal industry to provide you with careful legal guidance and helpful advice. Get started on your case today by calling our firm for a free consultation. Dial (972) 460-9339 now or contact MAS Law online for a free consultation about your case.

Robert VengrowRobert Vengrow

Associate | Attorney & Counselor at Law

Robert Vengrow is an associate attorney at MAS Law, where he specializes in Personal Injury Litigation. Robert has been a licensed member of the Texas Bar Association since 2010. He is admitted to practice law in the State of Texas and the United States District Court for the Northern District of Texas.

After graduating from Plano Senior High School, Robert earned his Bachelor of Arts in Crime and Justice Studies from the University of Texas at Richardson in 2006. He then relocated to Delaware and earned his Juris Doctor from Widener School of Law in 2009. Realizing Texas was his home, Robert moved back.

His relentless pursuit for justice has ensured that his clients receive compensation for injuries, damages, and lost wages.

Jeff Shelton

Associate | Attorney & Counselor at Law

Jeff Shelton is a senior litigation associate at MAS Law. He is a Dallas native that obtained his Bachelor of Arts in History with a minor in Environmental Studies at Baylor University. He then attended the Walter and Sheila Umphrey Law Center at Baylor University where he obtained his Juris Doctorate. He is licensed and admitted to practice in Texas as well as the U.S. District Courts in the Northern, Eastern, Southern and Western Districts of Texas and the U.S. District Courts in the Eastern and Western Districts of Oklahoma. Mr. Shelton has dedicated his practice to Litigation and practices Primarily in Serious Personal Injury, Family Law and Civil Litigation.

Mr. Shelton has tried over 100 cases to verdict in Administrative, County, State and Federal Courts in Texas.

Nader ArzaniNader Arzani

Associate | Attorney & Counselor at Law

Nader Arzani is an Associate Attorney practicing Civil Litigation, Business Law, and Commercial Litigation at MAS Law.

He is a licensed member of the State Bar of Texas. He is also a member of the Litigation, Business Law, and Computer & Technology Sections of the State Bar of Texas.

Nader obtained his Bachelor of Science in Business Administration from University of Texas at Dallas (UTD). He then earned his Juris Doctorate from Texas Tech University School of Law. During the Law School, he served as Executive Article Editor for Texas Tech Business & Bankruptcy Journal.

Nader is interested in the role of technology and computer in the practice of law, and he is keeping up with the modern trends in legal tech.

Landon Knotts

Associate | Attorney & Counselor at Law

Landon Knotts is an associate attorney working in Personal Injury Litigation at MAS Law. He has experience trying cases in multiple counties in the state of Texas and has handled and settled numerous cases on behalf of clients.

The son of a mailman and a schoolteacher, Landon is an East Texas native and attended the University of Texas at Austin where he earned his Bachelor’s Degree in Government while minoring in History. From there, Landon went on to attend law school at Oklahoma City University School of Law before coming back to Texas and becoming licensed as an attorney.

In his time as a practicing Texas attorney, Landon has worked on both the Plaintiff’s side of personal injury as well as the Insurance defense side, so he knows how insurance companies and their attorneys evaluate cases.

Landon is dedicated to getting his clients the compensation they deserve for the injuries they suffer at the hands of irresponsible drivers.

Sikandar Mehr

Associate | Attorney & Counselor at Law

Sikandar Mehr is an associate at MAS Law and is admitted to practice in the State of Texas.

Sikandar is an experienced litigator who represents clients in civil lawsuits, including personal injury, premises liability, and wrongful death cases. He has represented hundreds of clients in prosecuting and defending civil claims, allowing him to understand strategic considerations from multiple angles. Prior to beginning his civil practice in Dallas, Sikandar practiced immigration law in New Orleans.

Sikandar graduated from Louisiana State University, where he earned his Bachelor of Art in Mass Communication in 2011 and his Juris Doctor in 2014.

At MAS Law, Sikandar passionately represents clients in order to accomplish favorable results. The tremendous difficulties encountered by clients in the aftermath of injuries and the loss of loved ones is what motivates Sikandar to pursue justice for his clients.

Joe Carrington

Associate | Attorney & Counselor at Law

Joe Carrington is a personal injury litigation associate at MAS Law. He earned his Juris Doctor from the University of North Texas at Dallas College of Law. Prior to attending law school, Joe earned his Bachelor of Science in Business Administration and Finance from Colorado Technical University.

Joe is a combat veteran of the United States Marine Corps. Additionally, he brings over 12 years of law enforcement experience investigating criminal and traffic offenses including family violence, aggravated assaults, and DWIs. He is licensed and admitted to practice law in the State of Texas.


What Our Clients Are Saying 
  • They were helpful and always checked in with me to see how I was doing and gave updates on where the case was at.

    - Brian H.
  • Throughout the process, they kept us informed and educated. We appreciate their support and results.

    - Amanda
  • They are an excellent team to have in your corner. I have and will continue to rely on MAS for my legal and business matters.

    - Subhi G.

Why Hire Our Firm?

  • Clear Communication

    We are committed to keeping our clients informed of all important developments in their case.

  • Lawyers On Your Side®

    We take our commitment to our clients seriously & will visit injured clients who cannot travel.

  • Accessibility

    We strive to be accessible through 24/7 call answering, same-day appointments & initial consultations.

  • Diverse Backgrounds

    Our diverse backgrounds and experiences give us a sharp understanding of our clients' needs.

  • Results-Driven

    Our shareholders, associates, & paralegals work tirelessly to achieve the best results for clients.

  • Community

    Our team is committed to serving the Dallas area & has built a strong reputation in the community.


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Firm News & Events

At MAS Law Firm, we bring a diverse breadth of experience to every case, while maintaining an avid involvement in the Dallas community. Click below to learn more about our passionate advocacy for our clients and our community.