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Eva Marie Weiler

Eva M. Weiler is a partner and a member of the firm’s Mass Tort and Product Liability practice groups. Eva defends corporations in science-driven class actions, coordinated proceedings, and individual matters. She has tried high-stakes cases in state and federal courts and in nationwide MDL litigation, cross-examining scientific experts and fact witnesses, making opening and closing arguments, and crafting trial strategy.

Eva regularly serves as the lead in-court lawyer in complex coordinated proceedings, managing large numbers of single and multi-plaintiff cases with multiple codefendants and handling complicated science presentations, bellwether-case selection arguments, large-scale document production format disputes, and jurisdictional challenges with the court. She has managed litigation teams, local counsel in multiple jurisdictions, and served as a law firm managing partner for years. Her communication skills and forthright demeanor have gained her credibility with judges, clients, and opposing counsel, which makes her effective at advocating for her clients in everything from delicate individual contract negotiations to high-volume litigation and aggressive discovery demands. 

Eva has broad experience working with clients across multiple industries, including pharmaceuticals and supplements; medical devices; construction, utilities, and security products; consumer goods and food and beverage; vehicles; and environmental sustainability. She counsels companies on state and national labeling and marketing claims, including, for example, with respect to the FTC Green Guides, biodegradability, recycling, and ingredient characterization. She advises on federal contracting status and pre-litigation communication and media strategy, and handles risk assessments and governmental investigations. In litigating these types of matters, Eva works alongside her clients at the micro and macro levels—developing strategy, conducting oral argument and defending witnesses, investigating and crafting company stories, and drafting dispositive briefing at the trial and appellate level. She enjoys finding creative solutions to problems that serve the ultimate business goals of each client. 

Prior to joining the firm, Eva was a partner in the Orange County office of a national law firm. 

  • The Lawdragon 500 Leading Litigators in America, 2022, 2024-2025
  • Named to the Southern California Rising Stars list, 2013-2019
  • Board Member, Association of Business Trial Lawyers, OC Board of Governors California
  • Board Member, Friends of Immanuel University (India)
  • Member, Patient Family Advisory Council, Children’s Hospital Los Angeles
  • Presenter, “Competency for In-House Counsel, Do You Know What You Need to Know?,” ACC Ethics Day, Denver, CO, 6 December 2023
  • Presenter, “Competency for In-House Counsel, Do You Know What You Need to Know?,” ACC So-Cal CLE Event, 27 September 2023
  • Lecturer, “Business Litigation Ethics – Ethical Limitations On Statements Made To Third Party,” Ethical Wine Pairings CLE, 11 May 2022
  • Moderator and Panelist, "ESI & Discovery Disputes in California," Electronic Discovery Institute, 2017 Spring Meeting, Qualcomm, San Diego, California, 28 April 2017
  • Lecturer, "Knowing Your Limits: Competence and Substance Abuse," ACC Southern California CLE and Networking Event, Newport Beach, California, 30 July 2015
  • Lecturer, "Write Smart: Documents You Create Can Be Used Against Your Company," Northern California American Quality Society Biomedical Discussion Group, Newark, California, 23 January 2013
  • Lecturer, "Write Smart: Documents You Create Can Be Used Against Your Company," American Quality Society Annual Meeting, Anaheim, California, 22 May 2012
  • Editor, 2021, 2022, and 2023 Updates, Ch. 11-Product Liability, CEB Tort Guide, 3rd Edition
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