Alicia C. O'Brien Associate

Alicia C. O'Brien is an associate in McGuireWoods’ Los Angeles Century City office. Alicia is an innovative advocate with experience in all phases of litigation. Alicia’s litigation practice focuses on environmental and emerging-technology issues, and spans a wide-array of industries, including gig-economy, energy, nonprofit, technology, entertainment, hospitality, apparel and transportation.

Alicia has advised clients in high-stakes and high-profile litigation across the country. Alicia serves as national coordinating counsel for a Fortune 50, gig-economy technology company and coordinates litigation across a national portfolio while endeavoring to promote and protect her client’s strategic business interests.

Alicia has represented a Fortune 500 company in two trials in U.S. District Court. She has drafted multiple Ninth Circuit appellate briefs for both appellants and respondents on constitutional and environmental issues, including issues of first impression. She represented a copper mining company in various environmental cleanup contribution actions and is well versed in the complexities of CERCLA, particularly contribution actions and cost recovery actions.

Prior to joining McGuireWoods, Alicia was the lead associate managing a portfolio of hospitality industry commercial litigation across the state of California. She also served as a Judicial Fellow to Justice Victoria G. Chaney of the California 2nd District Court of Appeal.

Alicia is dedicated to serving the vulnerable people in her community and around the world. She is an active participant in community affairs and pro bono activities including defending the dignity of elderly clients with Bet Tzedek Legal Services and advocating for homeless individuals with the Los Angeles Legal Aid Foundation. She volunteers with the largest and oldest organization serving the unsheltered people in Los Angeles - The Giving Spirit.

Prior to her work as a litigator, Alicia worked in political communications managing the national press corps coverage of events during the 2008 U.S. presidential campaign and the 2010 U.S. Senate campaign in Connecticut.


Represented a Fortune 500 company in Federal District Court in two environmental cleanup trials under CERCLA. In one case, the client prevailed and was awarded $29 million dollars.

Prepared Ninth Circuit appellate briefs on behalf of a Fortune 500 company in two environmental cases on issues of first impression.

Drafted Ninth Circuit appeal brief for a Fortune 50 telecommunications company on a constitutional issue.

Advised a Fortune 500 company who is one of the most admired fashion and lifestyle companies in the world with a diversified portfolio of iconic brands, operating in over 40 countries and generating $9.9 billion in annual revenue, on compliance with Proposition 65 including for requirements, placement and content of warnings related to online sales, resale of refurbished merchandise and internal company sales.

Advised a nonprofit charity regarding trademark dispute.

Advised a Fortune 50 gig-economy technology company regarding trade secret litigation.

Advised Fortune 500 apparel company regarding compliance with the Toxic Substances Control Act.

Negotiated an entertainment contract for sale of intellectual property and media production with blue-chip multinational mass media conglomerate on behalf of a nonprofit organization.

Advised a national transportation and logistics company regarding compliance with California’s Air Resource Board regulations and reporting requirements.

Represented international hotel chain in premises-liability litigation throughout California.

  • University of California Los Angeles School of Law, JD, 2015
  • State University of New York at Purchase, BA, History, summa cum laude, 2007
Law Student Award, Los Angeles Chapter’s American Board of Trial Advocates, 2015
  • California
  • U.S. District Court for the Central District of California
  • U.S. District Court for the Southern District of California
  • U.S. District Court for the Northern District of California
  • U.S. Court of Appeals for the 9th Circuit
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