Michael J. Gleason

600 West Broadway
Suite 1500
San Diego, California 92101-3384

Primary Practices

Michael J. Gleason is an experienced litigator who builds upon his extensive legal knowledge to meet individual client needs. As Partner-in-Charge of the San Diego office and co-chair of Hahn Loeser’s San Diego Litigation Practice group, Mike prides himself on both understanding the law and knowing each individual client. This enables him to understand each client’s expectations, keep the client informed, ensure expectations are met and deliver a compelling narrative for the case tied to every unique client and case.

As a commercial litigator, Mike has represented clients in a wide range of industries, including escrow, title insurance, real estate, oil and gas, consumer credit, food, entertainment, manufacturing, retail and insurance. These representations include issues related to product liability, business tort, unfair competition and consumer protection statutes, bad faith insurance, the Song Beverly Credit Card Act, Proposition 65 (California’s Safe Drinking Water and Toxic Enforcement Act), the Telephone Consumer Protection Act (TCPA), the Fair Credit Reporting Act, and the Real Estate Settlement Procedures Act.

Mike’s experience defending class actions includes class-action lawsuit trials, eliminating proposed class actions on the merits prior to the certification decision, successfully opposing class-certification motions, decertifying previously certified classes, negotiating settlements of class claims and obtaining necessary court approval of class settlements. Throughout his career, Mike has gained extensive skills in investigating class-action allegations, identifying the key issues to attack the merits and class claims, efficiently handling large amounts of discovery and e-discovery, and addressing the variety of complex issues that may arise in a class action.

Professional History

  • Partner-In-Charge, San Diego Office, Hahn Loeser & Parks LLP, 2012-present; Partner, 2010-present; Associate, 2007-09
  • Attorney, Jones Day, 2001-07
  • Research Assistant to Professor Faust F. Rossi, Cornell Law School, Summer 1999



Cornell Law School, J.D., 2001

Honors & Activities: Cornell Journal of Law and Public Policy, General Editor; Phi Delta Phi, Member

University of Buffalo, B.A., History, magna cum laude, 1998

Honors & Activities: Phi Beta Kappa, Member; Highest Honors in History Department; Dean’s List; Phi Alpha Theta History Honors Society, Member; Golden Key Honors Society, Member; Outstanding Student in Political Science

Awards & Distinctions

AV Preeminent®, Martindale-Hubbell


San Diego’s Top Attorneys, SD Metro Magazine, 2022


Top 50 Influential Leaders, The Daily Transcript, 2019


“Top Lawyer,” Civil Litigation, San Diego Magazine, 2017-present


Rising Star, Southern California Super Lawyers®, 2015-16


“2015 Multi-State Class Action Defense Attorney of the Year in California,” Global Law Experts and CorporateINTL, 2015


Rising Star, Ohio Super Lawyers®, 2010-11









Bar Admissions

State of California, 2011


State of Ohio, 2001 (inactive)


U.S. Court of Appeals for the Ninth Circuit; U.S. District Courts for the Northern District of Ohio, Southern District of Ohio, Central District of California, Southern District of California, Northern District of California, Eastern District of California

Memberships & Affiliations

Board Member San Diego Volunteer Lawyers Program, 2019-present


California Bar Association


San Diego County Bar Association


Association of Business Trial Lawyers




California Land Title Association


San Diego Volunteer Lawyer Program, Board Member