Creative Representation | Expert Litigation

Contact Information

Main: 415.956.1900

Direct: 415.956.1900

Fax: 415.956.1152




University of California, Hastings College of the Law, J.D., 2004
(Moot Court Awards: Honorable Mention, Best Advocacy Brief, Best Oral Argument)

Miami University B.A. Cum Laude (Psychology; Organizational Behavior and History), 1999

Professional Affiliations

American Bar Association

Association of Business Trial Lawyers (ABTL), Northern California Chapter

Queen's Bench Bar Association

Board Member, SFPM Educational Enrichment Foundation, Fall 2015 to 2019

Bar Admissions

State Bar of California, 2004

United States District Courts for all of California, 2005


Author, “California Responses to Supercenter Development: A Survey of Ordinances, Cases and Elections,” Public Law Research Institute Reports, Spring 2004


Kerry Duffy is a Principal of the firm. Ms. Duffy has been involved in multiple high value commercial litigation cases. She has successfully represented clients in a range of matters, including employment disputes, antitrust claims, privacy claims, data breaches, bankruptcy, breach of contract, and Proposition 65 claims. She also has significant experience in e-discovery counseling and data management.

Prior to joining the firm, Ms. Duffy practiced in Oakland, California, specializing in bankruptcy litigation. She was a judicial extern to the Honorable Randall J. Newsome (Ret.), Chief Judge of the United States Bankruptcy Court, Northern District of California. While in law school, Ms. Duffy was an extern in the Office of the United States Trustee of the U.S. Department of Justice, San Francisco Division.

Representative Cases

Ms. Duffy helped obtain a defense verdict in a civil antitrust monopolization trial where the plaintiffs asked the jury for $34 million.

Ms. Duffy successfully resolved a FDIC investigation concerning a failed bank.

A major healthcare organization provider was represented by Ms. Duffy in a vendor breach of contract case.

Ms. Duffy was a member of the firm’s trial team in a trademark case over the use of a business name in which the firm twice defeated Wells Fargo’s motions for a preliminary injunction. Wells Fargo v. ABD, 2014 WL 4312021.

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