Mario H. Nguyen is an Associate in the White Collar Criminal Defense and Investigations Department of Locke Lord’s Dallas office. Mario represents individuals, public bodies, and private companies by conducting internal investigations, navigating government investigations, and advocating for clients in criminal proceedings and collateral civil matters involving state and federal investigative bodies.
Mario’s practice touches on a range of issues, including the Foreign Corrupt Practices Act (FCPA), False Claims Act (FCA), antitrust enforcement, public corruption, healthcare fraud, false statement, obstruction, commercial bribery, money laundering, forfeiture, embezzlement, Anti-Kickback Statute (AKS), securities fraud, Racketeer Influenced and Corrupt Organizations Act (RICO), and clemency pardon and commutation petitions.
Mario is particularly skilled at cross-border matters with Latin American countries and cases involving complex electronic discovery. His work includes arguing in federal and state court, defending depositions, conducting witness interviews, negotiating with the government, drafting complex court filings, and managing discovery in matters that have involved over two million documents.
In addition to his commitment to criminal pro bono work, Mario has authored various legal articles, which have been published and cited by major publications, such as the Wall Street Journal and Law360.
Prior to Locke Lord, Mario was a member of one of Harvard Law School’s honor societies — The Harvard Legal Aid Bureau — where he practiced family, housing, public benefits, special immigrant juvenile, and wage and hour law for two years under Massachusetts Supreme Judicial Court Rule 3:03.
There, Mario authored various pleadings and argued in state appeals court, trial court, family and probate court, and administrative adjudications, in addition to making appearances in depositions and mediations.
In 2017, Mario and his co-counsel secured the decision in CMJ Mgmt. Co. v. Wilkerson, 91 Mass. App. Ct. 276 (Mass. App. Ct. 2017), before the Massachusetts Court of Appeals, setting constitutional precedent in Massachusetts.
- Associate, Locke Lord LLP (2017 – Present)
- Member, National Diversity & Inclusion Committee, Locke Lord LLP
- Account Executive, Cultur8 (Omnicom) (2013 – 2014)
- Venture Coordinator, Ashoka Social Entrepreneurs Mexico & Central America (2012 – 2013)
- Economic Development Coordinator, Bowling Green Chamber of Commerce (2011 – 2012)
Professional Affiliations :
- Member, National Association of Criminal Defense Lawyers
- Member, Texas Criminal Defense Lawyers Association
- Member, Dallas LGBT Bar Association
- Member, Dallas Hispanic Bar Association
- Member, Dallas Asian American Bar Association
- Member, Dallas Bar Association
- Member, American Bar Association
- J.D., Harvard Law School, 2017
- Non-terminal M.B.A. certificate, Technological Autonomous Institute of Mexico, 2013
- B.A., Public Relations, magna cum laude, Western Kentucky University, 2012
Admissions : Texas
Admitted To Practice :
- U.S. District Court for the Eastern District of Texas
- U.S. District Court for the Northern District of Texas
- U.S. District Court for the Southern District of Texas
- U.S. District Court for the Western District of Texas
Rate : $$$