Mary Marks

Mary Marks

As Senior Counsel, Mary brings over 15 years of practical experience advising organizational clients on compliance and regulatory matters. Her practice focuses on compliance program development, export controls and sanctions, CFIUS reviews and foreign investment compliance, anti-corruption compliance, information security and data privacy, AI governance, and third-party and supply chain risk management.

Although her practice is oriented toward complex, technical regulations, Mary understands her value as a lawyer is supporting a client in turning a legal challenge into opportunities for growth and ensuring that clients have compliance controls to mitigate risk while building efficiencies. As part of this, Mary brings creativity, clarity, and a passion for delivering actionable solutions while building trust with her clients.

Prior to rejoining Cassidy Law, Mary held leadership roles at MasterBrand and Coherent Corp., where she led enterprise-wide ethics, trade, and regulatory compliance programs. Earlier in her career, she practiced with the international trade and global business group at Baker Donelson in Washington, D.C.

In addition to her experience in-house and in private practice, Mary brings experience from the government having served as Assistant General Counsel at the Federal Bureau of Investigation where she advised the FBI on operational and compliance-related matters.

Mary earned her BA from Penn State University, JD from Duquesne University’s Kline School of Law, and MPP from the University of Chicago. She is admitted to practice in the District of Columbia, Illinois, and Pennsylvania. She lives in Pennsylvania with her husband, dog, and two cats. When she’s not practicing law, you can find her traveling, hiking, painting, and spending time with family and friends.

Representative Matters

• Advised a government contractor developing dual-use technologies on strategic expansion into the Middle East, including end-use and end-user risk assessments, compliance with U.S. export control laws, sanctions due diligence, and structuring commercial arrangements to minimize exposure under OFAC and BIS restrictions.
• Conducted an internal investigation on behalf of a publicly traded healthcare technology company into allegations that employees were improperly directing business opportunities to affiliated entities, and that certain affiliates were violating contractual and ethical obligations.
• Counseled a satellite communications provider and government contractor on U.S. export control compliance related to the classification, licensing, and jurisdictional analysis of space-based communications systems and encryption-enabled technologies.
• Designed and implemented a global third-party due diligence program for a government contractor to evaluate legal, regulatory, and reputational risks associated with subcontractors, vendors, and international partners, with a focus on compliance with anti-corruption, export control, and sanctions regimes.