Mark J. Streiff

As a managing partner at Pantheon Legal Group, PLLC, based in Fort Worth, Texas, Mark J. Streiff provides comprehensive legal representation to individuals facing a wide range of criminal charges. His practice is dedicated to protecting the rights of clients accused in both state and federal courts, with a strong emphasis on strategic defense and thorough case analysis.

Mr. Streiff focuses his practice on organized crime, aggravated assault, murder and assault involving family violence. He also represents clients in cases involving drug charges, DWI and DUI defense, weapons-related offenses, and both felony and misdemeanor allegations. Additionally, he assists clients with diversion programs, writs and appeals, as well as civil rights litigation arising from criminal proceedings. His approach combines diligent preparation with an in-depth understanding of criminal law to advocate effectively for his clients at every stage of the legal process.

As a proud alumnus of Southern Methodist University Dedman School of Law, Mr. Streiff obtained his Juris Doctor in 2021. There, he developed advocacy skills that shaped his legal career. Prior to attending law school, he earned his Bachelor of Arts degree in history from The University of Texas at Arlington in 2018. He is admitted to the State Bar of Texas, as well as the U.S. District Court for the Northern District of Texas and the U.S. Court of Appeals for the 5th Circuit.

An active member of the legal community, Mr. Streiff maintains involvement with several professional organizations, including the Texas Criminal Defense Lawyers Association, the Tarrant County Criminal Defense Lawyers Association and the Dallas Criminal Defense Lawyers Association. He is also a member of the Texas Bar College, as well as veterans organizations such as Disabled American Veterans and the Veterans of Foreign Wars.