The leader in workers’ compensation defense law.

Counseling employers and insurance carriers throughout California.

Career Basics

Mary Britt became a member of the Mullen & Filippi team on October 9, 2017. Mary has practiced workers' compensation law since 2014. She represents employers, insurance carriers, and third-party administrators with respect to workers' compensation claims, as well as related matters, such as 132(a) claims and Serious & Willful allegations. Prior to her career in workers' compensation, Mary was a mediator with ten years of experience in mediating a wide variety of disputes covering a broad spectrum of legal areas of practice.


Mary received her law degree from Loyola Law School in 2006, at which time she also received the Dean's Service Award. She earned her Bachelor of Arts in Political Science from University of California, Berkeley in 2003.

Professional Membership

Mary is a member of the State Bar of California.

Personal Note

As a lawyer practicing workers' compensation, I have the opportunity to push myself on multiple levels: legal, medical, and personal. Workers' compensation is an extremely complex area of law, and the rules governing litigation are always evolving. The medical component exposes me to a wide variety of conditions, treatment protocols, and how different doctors can come to very different conclusions about the same individual. But what really fascinates me about workers' compensation is the endless variety of people - adjusters, applicants, lawyers, and doctors - who populate the practice. Navigating different people's demands while ensuring the best possible outcome for my client is a challenge that I always look forward to.

I began fencing in high school. One of my coaches was a retired defense attorney, and encouraged my pursuit of a legal career. The other fencers in my club came from a wide variety of careers, but the one constant was that they were mentally agile. In between bouts, we would bounce from topic to topic - politics to the movie Labyrinth to medieval history. Getting to know, and figuring out how to work with or work around, people is still one of the most fascinating parts of my job.