Biography

Mark was born and raised in Northeast Dallas, where he learned early on the value of hard work, community, and his love for the Dallas Cowboys. He earned his B.S. in Criminal Justice from Texas State University, and during an internship with a local law firm, he realized he had found his calling in the legal field.

After a short stint in Houston, Mark made the move to San Antonio to pursue his law degree at St. Mary’s University School of Law, where he was named the Super Brief Winner for the best overall brief in his class. As a first-generation law student, Mark balanced night classes while working full-time at Clayton & Null Law Firm, sharpening his legal skills and his coffee preferences at the same time.

In 2023, Mark earned his J.D. and returned to the Dallas-Fort Worth area, where he now lives with his two energetic (and very spoiled) dogs, Kahlua and Piper. Outside the office, you can find him volunteering at pro bono clinics, coaching little league baseball teams, attending concerts, or enjoying an afternoon on the golf course.

At Clayton & Null Law Firm, Mark assists clients with real estate transactions, estate planning, and business and commercial transactions.