ATTORNEYS

Mary S. Thomas
Counsel

Practice Areas

  • Corporate Litigation
  • General Litigation

Mary S. Thomas practices in the areas of corporate, commercial, and false claims act litigation.   She spent twelve years practicing business litigation with two of Los Angeles’ leading law firms before returning to Delaware in 2006. She then practiced for another twelve years in Delaware, representing institutional investors in class action securities and shareholder litigation and individual relators in false claims act cases.

Ms. Thomas represented the lead plaintiffs in the Marsh & McLennan securities litigation, which resulted in a $400 million settlement, and represented the lead plaintiff in the Pfizer securities litigation, which resulted in a $486 million settlement.  In the Court of Chancery, Ms. Thomas successfully represented investors in the ACS shareholders litigation.  In Delaware Superior Court, she successfully tried a Delaware False Claims and Reporting Act case concerning unclaimed gift card balances.

Ms. Thomas served as a volunteer arbitrator for the L.A. County Bar Association and as a volunteer mediator for the L.A. Superior Court and now serves as a volunteer guardian ad litem through Delaware’s Office of the Child Advocate.  She co-authored “California Wage and Hour Laws” (published by the National Legal Center for the Public Interest, January 2005) and was one of several authors of the 10th and 11th editions of the California Environmental Law Handbook.

Ms. Thomas graduated magna cum laude from Harvard Law School in 1994 and magna cum laude from the University of Delaware in 1991.

BAR ADMISSIONS

  •  Delaware
  • California
  • New York
  • District of Columbia
  • U.S. Supreme Court
  • U.S. Court of Appeals for the 1st Circuit
  • U.S. Court of Appeals for the 9th Circuit
  • U.S. District Court for the District of DE
  • U.S. District Court for the Northern District of CA
  • U.S. District Court for the Southern District of CA
  • U.S. District Court for the Central District of CA
  • U.S. District Court for the Southern District of NY

EDUCATION

  • University of Delaware, B.A., magna cum laude (1991)
  • Harvard Law School, J.D., magna cum laude (1994)