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Justin L. Mason

Founding Attorney
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Top Rated Personal Injury Attorney 
Serving the St Louis Area

Representing Injury Victims 

Justin Mason attended Saint Louis University. In the Spring of 1993, Justin's father was stationed at Scott Air Force Base where he would eventually retire in 1998. Rather than uproot the family, Justin's father decided to stay in Illinois and established roots in Swansea where Justin went to Wolf Branch and Belleville East.

After graduating high school, Justin Mason attended Saint Louis University, where he earned a bachelor's degree. Following graduation, Justin attended Capital University Law School in Columbus, Ohio, before transferring to St. Louis University Law School and earning his law degree.

After founding The Law Offices of Justin L. Mason, LLC in St. Louis, Missouri, Justin concentrated his practice in the areas of personal injury, including automobile accidents, workers’ compensation, wrongful death, brain injuries, spinal cord injuries and paralysis, motorcycle accidents, trucking accidents, medical malpractice, and nursing home negligence.

Justin has handled numerous personal injury and workers’ compensation trials throughout both the state of Missouri and the state of Illinois. He is a member of the Missouri and Illinois Bar and has been rated as one of the 10 Best Attorneys in Missouri.

He is also a member of the Missouri Association of Trial Attorneys and Illinois Trial Lawyers Association, organizations dedicated to protecting injured people’s rights and holding themselves to the highest standards as “Trial Lawyers.”

A Message from Attorney Justin L. Mason

When I graduated from law school and began working for an insurance defense company, I faced a huge dilemma: either be secure financially and miserable, or quit, be happy, and not know where my next check would come from. I got to wear a suit every day, tell my friends and family that I was an associate at the big firm, and have a salary with benefits that would provide my two daughters healthcare insurance.

What people didn’t know was that I was working to save trillion-dollar insurance companies money by making people file lawsuits for cases that should have settled, and by delaying settling cases in hopes that people would get desperate and take less than what their case was worth. I hated every single moment of it; morally and ethically I felt empty, but I had a steady paycheck, a 401(k), and medical benefits. So I decided to open my own law firm.

I took whatever walked in the door but I knew my calling was helping people who were hurt by others. My moral compass had righted itself towards the foundation of selflessness, tireless work ethic, and wanting to help those who could not help themselves.

I eventually found mentors who would really teach me the level of dedication and compassion it took to be a great personal injury attorney, and I haven’t looked back. My staff and I pride ourselves on treating the $500 car accident the same way we treat the million-dollar wrongful death case; the bagger at Schnucks the same way we treat the owner of a restaurant.

We have an unmatched work ethic, dedication, clear communication, and a desire for leaving people better than we have found them. We take on cases that are difficult, but it’s because we believe in those cases and those people. We welcome the opportunity to make you a priority and help you get the justice you deserve.

Our Clients Share Their Stories

Real Stories. Real People.
  • “Justin and his assistant Katie were extremely patient with me. They kept me In the loop with every part of my case.”

    - Kiara G.
  • “Mr. Mason is direct and clear to the point. One of the first things he will do upon taking a case provides you immediate medical help. He goes to work without delay.”

    - Elissa Minner
  • “I was really impressed because I do not impress easily. He worked diligently on my behalf and during this whole process”

    - Sha

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