J. Warren Rissier counsels on defense of class actions and other complex commercial litigation, with emphasis on consumer actions, securities, professional liability, and real estate disputes. Warren successfully represents individual and corporate clients in proceedings in California courts and other jurisdictions across the country, as well as in arbitrations and government investigations.
Warren is listed in The Best Lawyers in America and, for more than a dozen years‚ Warren has been recognized as a “Southern California Rising Star” or “Southern California Super Lawyer” by Super Lawyers in the areas of Securities Litigation and Class Action & Mass Torts. Warren is a Past President of the Los Angeles Chapter of the Association of Business Trial Lawyers and served on its Board of Governors for nine years (2006–2014). Before joining Morgan Lewis, Warren was a litigation partner at another international law firm.
Class Action Defense
Accountant Defense
Complex Commercial Litigation
Awards
Recommended, Dispute resolution: Appellate, The Legal 500 US (2019)
Member, Law Firm of the Year, Securities Regulation, US News/Best Lawyers – Best Law Firms (2019)
Recognized, Commercial Litigation, Los Angeles, The Best Lawyers in America (2023, 2024)
Recognized, Litigation – Securities, Los Angeles, The Best Lawyers in America (2016–2024)
Recognized, Securities Litigation and Class Action & Mass Torts, Southern California Super Lawyers (2011–2019)
Top 20 California Lawyers Under 40, Los Angeles and San Francisco Daily Journal (2010)
Super Lawyers, Southern California Rising Star, Law & Politics magazine & Los Angeles magazine (2006–2010)
Member, Order of the Coif, University of Southern California Law School (1998)
University of Southern California Law School Merit Scholarship (1998)
Extern with the Hon. Consuelo Marshall in the United States District Court (1997)
Southern California Law Review, University of Southern California (1997)
Bar Leadership
Past President of the Los Angeles Chapter of the Association of Business Trial Lawyers (2013–2014), and served on its Board of Governors for nine years (2006–2014)
Community Service
President of the Board of Directors for Heart of Los Angeles Youth (2014–2016), Audit Committee Chair (2011–2013), and Board member (2006–present)
Public Service Committee Chair for the Association of Business Trial Lawyers, Los Angeles Chapter (2006–2007)
Volunteer prosecutor for the City of Los Angeles (2002)