Garen Marshall is a partner in McGuireWoods’ Government Investigations and White Collar Litigation Department and leads the firm’s Artificial Intelligence Practice Area. A former Assistant United States Attorney in the Eastern District of New York and Navy special operations veteran, he represents corporations, executives, and boards in government and internal investigations, regulatory enforcement matters, and complex civil litigation, with a practice that extends to AI governance, AI-related enforcement and litigation risk, and corporate compliance issues involving artificial intelligence.
In the Eastern District of New York, Garen served in the National Security and Cybercrime Unit and the Organized Crime and Gangs Unit, prosecuting wire fraud, securities fraud, honest services violations, money laundering, and racketeering. He brings that prosecutorial background to investigations, enforcement matters, and complex disputes involving financial fraud, securities violations, and institutional misconduct across industries including financial services, healthcare, private equity, higher education, professional sports, and emerging technology. Earlier in his career, he served as a secondee to a leading global financial services company and as a federal law clerk.
Garen’s investigations and enforcement background informs his approach to AI-related matters, particularly how regulators and prosecutors evaluate AI-related conduct and the resulting enforcement and litigation exposure. He advises clients on AI governance frameworks, vendor diligence, privilege and confidentiality issues involving AI tools, AI-related disclosures and representations, and AI washing and related enforcement risks. He regularly publishes and speaks on AI governance and AI enforcement developments across DOJ, the SEC, and federal and state regulators.
Before becoming a lawyer, Garen served in the United States Navy as an explosive ordnance disposal technician during Operation Iraqi Freedom, receiving the Bronze Star, Army Commendation Medal, and twelve other military service medals. He has led veterans advocacy initiatives, including at NYU School of Law, where his efforts helped establish one of the nation’s most generous funding programs for eligible veterans. He continues to support veterans causes, including through his service on the board of Veterans Bridge Home and as McGuireWoods’ veterans pro bono coordinator.
- Conducted an internal investigation on behalf of a multi-national technology company related to insider trading by a corporate executive and obtained nearly $800,000 in restitution for the client.
- Conducted a cross-border internal investigation on behalf of a large financial institution related to manipulation of the London Interbank Offered Rate (LIBOR).
- Represented the former COO of a registered investment advisor in connection with an SEC investigation related to the sale of a large, collateralized debt obligation.
- Represented a multinational investment bank in civil litigation arising out of the purchase of nearly $200 billion of residential mortgage-backed securities.
- Conducted an internal investigation related to insider trading on behalf of a mid-size software company following DOJ and SEC inquiries.
- Conducted an internal investigation on behalf of a cryptocurrency exchange in response to a CFTC inquiry.
- Advised numerous corporate clients regarding FINRA inquiries related to mergers and acquisitions.
- Served as a secondee to Morgan Stanley’s Legal & Compliance Division.
- Investigated and prosecuted criminal matters involving wire and securities fraud, honest services fraud, tax fraud, money laundering, asset forfeiture, racketeering and organized crime, cybercrime and violent crime.
Events
- Presenter, "Understanding the Evolving AI Regulatory Landscape: Federal and State Developments," Corporate Disclosure Trends Webinar Series, June 17, 2026
- Speaker, "AI Legal Risk: Enforcement, Regulation, & Governance," In-House Legal CLE Seminar, May 6, 2026
- Speaker, "AI Legal Risk: Enforcement, Regulation, & Governance," Truist Bank CLE Seminar, April 28, 2026
- Speaker, "AI Legal Risk: Enforcement, Regulation, & Governance," CSX Corporation CLE Seminar, February 12, 2026
- Speaker, "Overview of AI in Legal: Tools, Techniques, Use Cases and Beyond," In-House Legal CLE Seminar, February 4, 2026
- Speaker, "AI Legal Risk: Enforcement, Regulation, & Governance," Colliers International CLE Seminar, January 12, 2026
- Speaker, "Understanding AI Legal Risks at the State and Federal Level," McGuireWoods LLP CLE Seminar, October 8, 2025
- Moderator, "Managing Risk to Preserve Value: Compliance and Diligence Strategies for Healthcare Investors," Healthcare Growth & Operations, September 16 - 17, 2025
- Speaker, "Navigating the Legal Landscape of Artificial Intelligence," In-House Legal CLE Seminar, February 27, 2025
- Speaker, "Pitfalls of Conducting Internal Investigations at Financial Institutions," In-House Legal CLE Seminar, September 24, 2024
Podcasts
- Guest, "Preparing a Compliance Plan, With Garen Marshall," The Corner Series, April 23, 2025
Insights
- Author, When Geopolitics Disrupts the Cloud: What Data Center Leaders Need to Know About Insurance, McGuireWoods Legal Alert, May 26, 2026
- Author, Old Wine, New Bottles? FinCEN Proposes to Codify AML/CFT Program Standards for Financial Institutions, Subject to Inquiry, April 9, 2026
- Author, $300 Million Reasons to Talk: FinCEN Proposes a Whistleblower Reward Program for AML and Sanctions Violations, Subject to Inquiry, March 31, 2026
- Author, White House Releases AI Legislative Recommendations—Congress Has the Blueprint, but Questions Remain, Password Protected, March 23, 2026
- Co-author, "The Law Hasn’t Caught Up: Lessons in AI Risk from Recent Federal Enforcement Developments," Compliance & Enforcement, March 16, 2026
- Author, SEC and FinCEN Hit Broker-Dealer for Sweeping AML Compliance Failures, Subject to Inquiry, March 13, 2026
- Author, When AI Isn’t Privileged, Confirmed: SDNY’s Written Opinion Elaborates on Confidentiality, Work Product, and Waiver, Subject to Inquiry, February 18, 2026
- Author, When AI Isn’t Privileged: SDNY Rules Generative AI Documents Not Protected, Subject to Inquiry, February 13, 2026
- Author, After a Pause, DOJ’s Updated FCPA Guidelines Focus on Cartels and TCOs, But Corporate Exposure Remains, Subject to Inquiry, June 30, 2025
- Author, Justice Department Issues First Declination Under NSD’s M&A Safe Harbor Policy to Private Equity Firm, Reinforcing Roadmap for Acquiring Firms, Subject to Inquiry, June 18, 2025
- Author, The Risks of Rushing In: A Closer Look at DOJ Criminal Division’s Updated Corporate Enforcement Policy in the Broader Enforcement Landscape, Subject to Inquiry, June 12, 2025
- Author, DOJ’s Healthcare Fraud Enforcement: Trends, Priorities and Implications, Subject to Inquiry, May 30, 2025
- Co-author, "DOJ Signals Major Shift In White Collar Enforcement Priorities," Law360, May 14, 2025
- Author, DOJ Signals Shift in White Collar Enforcement: New Policies Stress Proportionality, Partnership, and Clarity, Subject to Inquiry, May 13, 2025
- Author, Hawley Proposes Bill Limiting American and Chinese Interaction on AI, McGuireWoods Legal Alert, May 12, 2025
- Author, Europe Steps Up as U.S. Pauses FCPA Enforcement: What Companies Need to Know About the New International Anti-Corruption Taskforce, Subject to Inquiry, April 14, 2025
- Author, Crypto’s Next Compliance Challenge: Preparing for Regulatory Scrutiny of Manipulative and Insider Trading, The International Journal of Blockchain Law, Vol. 11, February 2025
- Author, Trump Administration Executive Orders Seek to Deregulate Artificial Intelligence, McGuireWoods Legal Alert, February 11, 2025
- Co-author, "Crypto.com’s Suit Against SEC Could Hold Major Implications," Law360, October 31, 2024
- Author, Crypto.com Sues the SEC in Texas – Arguments and Implications for the Cryptocurrency Industry, Subject to Inquiry, October 14, 2024
- Author, AI Risk and Whistleblower Protection Spotlighted in DOJ’s Revised Corporate Compliance Guidance, Subject to Inquiry, October 3, 2024
- Note, Increasing Accountability for Demand-Side Bribery in International Business Transactions, 46 N.Y.U. J. INT'L L. & POL. 1283 (2014)
- Author, Cybercrime and the Law: Challenges, Issues, and Outcomes, 45 N.Y.U. J. INT'L L. & POL. 901 (2013)
- Co-author, Privilege Waivers’ Role in Deferred and Non-Prosecution Agreements, 250 N.Y.L.J. 47 (Sept. 5, 2013)
- Author, "Choosing War: A Constitutional and Ethical Evaluation of the U.S. Response to 9/11 in OIF and OEF," Baruch College, City University of New York, 2011
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- Selected for inclusion in “The 2025 Lawdragon 500 X – The Next Generation,” Lawdragon, 2025
- Selected as Phenom, “2024 Icons & Phenoms Awards,” North Carolina Lawyers Weekly, 2024