Sonia Fleury

Senior Associate

Fleury, Sonia

Sonia Fleury is a senior associate who works on a diverse range of matters within WilmerHale's Litigation/Controversy Department. She was previously a summer associate at the firm in 2012, and joined the firm after serving as a law clerk on the United States Court of Appeals for the Sixth Circuit, and the United States Court of Appeals for the Ninth Circuit.

Prior to obtaining her law degree, Ms. Fleury was a law clerk in the Office of General Counsel for the Regents of the University of California. In that role, she researched and wrote a court motion opposing a forum non conveniens transfer for an international litigation case. Previously, Ms. Fleury was part of the trial team at the International Human Rights Law Clinic for a case before the Inter-American Court of Human Rights against the Guatemalan state for forced disappearance during the civil war. As a student advocate at the California Asylum Representation Clinic, she successfully represented a Guatemalan client seeking political asylum. Ms. Fleury also worked on a death penalty direct appeal to a state supreme court as part of her law school's Death Penalty Clinic.

Professional Activities

Ms. Fleury is admitted to practice in California and before the United States Court of Appeals for the Sixth Circuit.

Publications & News


January 12, 2018

US and Mexican Anti-Corruption Enforcement in an Era of Uncertainty: Risks and Opportunity

In this article featured in the ABA's Mexico Update newsletter, WilmerHale's John Walsh, Rommy Flores and Sonia Fleury explore US and Mexican anti-corruption enforcement in an era of uncertainty.

January 31, 2017

False Claims Act: 2016 Year-in-Review

In 2016, the Department of Justice continued to give high priority to False Claims Act investigations and prosecutions. This WilmerHale Client Alert was republished by Pratt's Government Contracting Law Report.

August 8, 2016

Three Things To Know About New California Labor Trafficking Law

In this article published by Law360, Chris Casamassima, Sonia Fleury and Kelsey McGregor detail recent changes to California's labor trafficking policy, and three key compliance steps that companies should be aware of.

February 2, 2016

Global Anti-Bribery Year-in-Review: 2015 Developments and Predictions for 2016

Among other significant developments, 2015 saw the U.S. Department of Justice (the “DOJ” or the “Department”) document a policy priority of holding individuals accountable for corporate wrongdoing. This policy was laid out in the “Yates Memorandum”—announced by Deputy Assistant Attorney General Sally Quillian Yates—and related changes the DOJ made to the U.S. Attorney’s Manual.


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JD, University of California, Berkeley School of Law, 2013, Articles Editor and Board Member, California Law Review, Articles Editor and Board Member, Berkeley Journal of International Law

BA, History and History of Art, summa cum laude, University of California, Berkeley, 2009, Phi Beta Kappa

Bar Admissions






The Hon. Milan D. Smith, US Court of Appeals for the Ninth Circuit, 2014 - 2015

The Hon. John M. Rogers, US Court of Appeals for the Sixth Circuit, 2013 - 2014

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