Mark J. Oppel Of CounselMark J. Oppel has nearly twenty years of experience working on high-profile cases within the Department of Defense and the U.S. Army; Mark offers a unique global perspective to his clients and the firm. Mark retired from the

U.S. Army as a Lieutenant Colonel. He continued to serve his country as a GS-15 focusing on national security contracts such as helping negotiate the contracts required to create Army Futures Command. In short, Mark is committed to helping military personnel and civilians.

As an expert in Government acquisition, federal compliance, and litigation, Mark applies strategic yet practical thinking to help clients succeed in the Government and commercial marketplace. Mark guides clients in critical decision-making on complex statutes and regulations, delivering results, simplifying processes, increasing profitability, and enabling business relationships with the Government. Mark focuses on Entrepreneurial Business Law, Government Contracts including FAR and non-FAR contracts, Business Formation and Development, National Security Law, Cyber Law, Military Law, False Claims Act, and FOIA.

Mark holds a Master of Laws in Military Law from The Judge Advocate General’s Legal Center & School. He received his Juris Doctor from the University of Oklahoma College of Law and his Bachelor of Science in Business from Oklahoma State University. He is licensed to practice law in Texas, Oklahoma, and Missouri. Mark has received extensive training throughout his military and legal career, including advanced fiscal and government contract law, national security law, intelligence law, federal litigation, and federal employment law.

Born on a wheat and cattle farm in Western Oklahoma, Mark is an avid outdoorsman. He loves to fish, hunt, hike, ski, and golf. Mark is dedicated to being a soccer dad, supporting his church, and helping entrepreneurs and Veterans succeed in their ventures. Mark also helps numerous youth and nonprofit organizations, including Untrafficked and Refuge City, organizations dedicated to supporting victims of child sex trafficking. He has a passion for world travel, experiencing new cultures, wine tasting, and spending time with his wife Sarah and his four sons, Kilian, Zachary, Luke, and Owen. Mark is admitted to practice law in Oklahoma, Texas, and Missouri.