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McDermott Will & Emery LLP

Work +1 650 815 7400
Fax +1 650 815 7401

Marisa Chun

Work +1 650 815 7668
McDermott Will & Emery LLP

Work Department

Dispute Resolution/Corporate Investigations & White Collar Criminal Defense


Partner A. Marisa Chun is an experienced trial and appellate lawyer and leads the Firm’s Litigation Practice Group in its San Francisco and Silicon Valley offices. She represents clients in diverse matters involving business and employment litigation, class actions, and internal and government investigations involving False Claims Act, health care fraud, antitrust, and other regulatory matters – focusing on thoughtful advocacy and strategies to secure an early and favorable resolution or victory if the case must be tried. As a former television reporter, prosecutor, and senior official at the US Department of Justice, Marisa draws upon her legal, government, and media experience when advising clients and boards of directors facing high-stakes matters in today’s highly regulated environment. Bilingual in Korean, Marisa also has significant experience advising companies and executives in the Korean technology, life sciences, and energy industries.

For further details of Marisa's biography, please view McDermott website:

United States: Dispute resolution

General commercial disputes

Within: General commercial disputes

Healthcare litigation is a standout area for McDermott Will & Emery LLP, which is also well versed in tax, IP antitrust and class action litigation, among other areas. In a cross-office effort, Jon Dean and Russell Hayman in Los Angeles and Boston-based Sarah Walters successfully defended Plantronics in a high-stakes antitrust trial in federal court in Delaware. In a case before the California Supreme Court, San Francisco-based Marisa Chun acted for the Bar Association of San Francisco and the Los Angeles County Bar Association as amicus curiae in litigation that considered "clawback" fee issues in the context of law firm dissolutions. Charles Weir is the head of the Los Angeles litigation group; Anthony Bongiorno is a name to note in Boston; the 'outstanding' Terrence Dee is based in Chicago.

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