David Marroso heads the litigation department of O’Melveny’s Century City office. A first-chair trial lawyer, David has extensive experience handling complex and high-stakes litigation. Over nearly two decades, David has partnered with his clients to achieve successful outcomes in antitrust, contract, copyright and trademark, corporate investigations, defamation, environmental, ERISA, insurance, interference, labor and employment, profit participation and royalty, international tax, and white collar criminal defense matters. David is proud of his roster of institutional and individual clients, which spans entertainment and sports, technology, agriculture, real estate, private equity, and hospitality. Benchmark Litigation called David a “litigation star” and Chambers USA recognized him as a go-to lawyer for general commercial litigation.
Honors & Awards
- Named to Variety’s Legal Impact Report (2019)
- Named a Local Litigation Star for General Commercial, and Media & Entertainment by Benchmark Litigation (2019, 2020)
- Named a “Recognized Practitioner” by Chambers USA for Litigation: General Commercial in California (2018)
- Recognized by The Legal 500 for his work in the Sports Industry (2017)
Admissions
Bar Admissions
Court Admissions
- US Supreme Court
- US Court of Appeals, Fourth, Fifth, Eighth, Ninth, and Eleventh Circuits
- US District Court, Northern, Eastern, Central, and Southern Districts of California
Education
- Harvard Law School, J.D., 2000: magna cum laude
- University of Nevada at Reno, B.S., Criminal Justice, 1996: magna cum laude
Professional Activities
Clerkship
- Honorable Stephen S. Trott, US Court of Appeals, Ninth Circuit
Internship
- US Department of Defense (1998)
Co-Author
- “Caution, Preclusion Ahead: The New TTAB Landscape,” Law360 (September 21, 2018) (with Megan Smith)
- “Top Rank’s Victory Helps Firms Protect Exclusivity Provisions,” SportsBusiness Journal (August 24-30, 2009)