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Tiauna N. Mathieu
Senior Associate
101 Constitution Avenue, NW
Suite 900
Washington, D.C., 20001
Suite 900
Washington, D.C., 20001
tiauna.mathieu@nelsonmullins.com
Tiauna represents companies and individuals in high-stakes commercial and white-collar litigations. She also has extensive experience helping clients identify and mitigate financial fraud risks. Tiauna maintains an active pro bono practice, which predominantly consists of helping low-income individuals navigate the criminal legal system.
Tiauna represents companies and individuals in high-stakes commercial and white-collar litigations. She also has extensive experience helping clients identify and mitigate financial fraud risks. Tiauna maintains an active pro bono practice, which predominantly consists of helping low-income individuals navigate the criminal legal system.
Experience
The following is a selected sampling of matters and is provided for informational purposes only. Past success does not indicate the likelihood of success in any future matter.
Representative Matters
- Obtained reversal of $5.4 million default judgment in Ninth Circuit appeal related to violations of discovery orders.
- Argued novel constitutional issue in the U.S. District Court for the Eastern District of Virginia.
- Assisted a multinational oil and gas company regarding an internal review of compliance with economic sanctions.
- Provided compliance trainings to executives of “supermajor” oil and gas company.
Previous Professional Experience
- Associate, International law firm (2021–2025)
Publications
- Co-Author, Bribery Settlement Gives Insight on DOJ Policies, Law360 (Jan. 5, 2024)
Speaking Engagements
- Speaker, “ABA Export Controls Year-in-Review,” American Bar Association International Law Section Webinar (March 28, 2025)
Education
-
Georgetown University Law Center,
JD
(2019)
- Senior Articles Editor, Georgetown Journal of Law & Modern Critical Race Perspectives
- President, Christian Legal Society
- Member, Black Law Students Association
- Alan J. Goldstein Memorial Award
- Hampton University, BS, Criminal Justice and Criminology, summa cum laude (2016)
Admissions
- District of Columbia
- New York
- U.S. District Court for the District of Columbia
Clerkships
- Law Clerk, the Honorable Todd E. Edelman, Superior Court of the District of Columbia (Sept. 2019 - Oct. 2020)
Practice Areas
The following is a selected sampling of matters and is provided for informational purposes only. Past success does not indicate the likelihood of success in any future matter.
Representative Matters
- Obtained reversal of $5.4 million default judgment in Ninth Circuit appeal related to violations of discovery orders.
- Argued novel constitutional issue in the U.S. District Court for the Eastern District of Virginia.
- Assisted a multinational oil and gas company regarding an internal review of compliance with economic sanctions.
- Provided compliance trainings to executives of “supermajor” oil and gas company.
Previous Professional Experience
- Associate, International law firm (2021–2025)
Publications
- Co-Author, Bribery Settlement Gives Insight on DOJ Policies, Law360 (Jan. 5, 2024)
Speaking Engagements
- Speaker, “ABA Export Controls Year-in-Review,” American Bar Association International Law Section Webinar (March 28, 2025)
Professional Activities
- Director of Membership, Her Legal Circle
Community
- Life Group Leader, The District Church
Tiauna represents companies and individuals in high-stakes commercial and white-collar litigations. She also has extensive experience helping clients identify and mitigate financial fraud risks. Tiauna maintains an active pro bono practice, which predominantly consists of helping low-income individuals navigate the criminal legal system.
Experience
The following is a selected sampling of matters and is provided for informational purposes only. Past success does not indicate the likelihood of success in any future matter.Representative Matters
- Obtained reversal of $5.4 million default judgment in Ninth Circuit appeal related to violations of discovery orders.
- Argued novel constitutional issue in the U.S. District Court for the Eastern District of Virginia.
- Assisted a multinational oil and gas company regarding an internal review of compliance with economic sanctions.
- Provided compliance trainings to executives of “supermajor” oil and gas company.
Previous Professional Experience
- Associate, International law firm (2021–2025)
Publications
- Co-Author, Bribery Settlement Gives Insight on DOJ Policies, Law360 (Jan. 5, 2024)
Speaking Engagements
- Speaker, “ABA Export Controls Year-in-Review,” American Bar Association International Law Section Webinar (March 28, 2025)
Education
-
Georgetown University Law Center,
JD
(2019)
- Senior Articles Editor, Georgetown Journal of Law & Modern Critical Race Perspectives
- President, Christian Legal Society
- Member, Black Law Students Association
- Alan J. Goldstein Memorial Award
- Hampton University, BS, Criminal Justice and Criminology, summa cum laude (2016)
Admissions
- District of Columbia
- New York
- U.S. District Court for the District of Columbia
Clerkships
- Law Clerk, The Honorable Todd E. Edelman, Superior Court of the District of Columbia (Sept. 2019 - Oct. 2020)
Practice Areas
- Director of Membership, Her Legal Circle
- Life Group Leader, The District Church
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