Photograph of Deborah E. Arbabi

Deborah E. Arbabi


Deborah E. Arbabi is the managing partner of Crowell & Moring's Orange County office and is a member of the firm's Antitrust & Competition Group. Deborah is a seasoned litigator with a focus on antitrust and allegations of overcharges in a variety of contexts. Deborah assists clients with achieving recovery through litigation, negotiation, and pursuit of claims, and has recovered over $1 billion for clients in recent years. She has unique experience in class action claims recovery, and devotes the majority of her practice to pursuing and maximizing claims in large antitrust and tort settlements. She is experienced in the process by which class action settlements are administered and distributed, and in resolving disputes involving allowable purchases, sufficiency of data, jurisdictional issues, and matters affecting allocations of funds.

Deborah is experienced in all aspects of complex litigation, including trial, pretrial and appellate work. She has handled matters in federal and state courts, as well as in ADR procedures. 

Deborah performs work on a pro bono basis, including matters involving deceptive financing, homelessness assistance, domestic violence, and other family law issues. Deborah served for 20 years on the Public Law Center's Board of Directors, Orange County's public interest law firm, including two years as the president of that board.

Deborah graduated from the University of Southern California Law School in 1993. While in law school, Deborah served as the executive notes editor for the Interdisciplinary Law Journal. She also worked with the law school's faculty in connection with representation performed for the Central District of California's Federal Indigent Defense Panel. Deborah earned her bachelor of arts in literature from Miami University of Oxford, Ohio in 1990.


  • Miami University, B.A. literature (1990)
  • University of Southern California, Gould School of Law, J.D. (1993)


Professional Activities and Memberships

  • Member, Federal Bar Association
  • Member, the Association of Business Trial Lawyers, the American Bar Association Sections, on Litigation and Antitrust
  • Member, California Bar Association Section on Litigation

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Antitrust and Competition

Class Actions

Litigation & Trial


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Global Competition Review Recognizes Crowell & Moring’s Antitrust & Competition Group in "GCR 100 2023" (December 22, 2022)
Firm News / Announcement
OCCDL Recognizes Orange County Office as a Top Ten Diverse Legal Organization, Names David Griffith Among Top Ten Diverse Lawyers (September 13, 2022)
Firm News / Announcement
Eighth Annual In-House Recovery Conference, Dana Point, CA (March 9-11, 2022). Meeting Organizers: Daniel A. Sasse and Deborah E. Arbabi.
"Hidden Assets in Bankruptcy and Corporate Wind Downs: How to Identify, Preserve, and Monetize Them," TMA Town Hall Sponsored by Hilco Global (July 21, 2021). Speaker: Deborah Arbabi.
Seventh Annual In-House Recovery Conference, Dana Point, CA (March 4, 2021). Meeting Organizers: Daniel A. Sasse and Deborah E. Arbabi.
Judge Considers Revisions To Apple Settlement Over Throttled iPhones Daily Journal (December 7, 2020)
Press Coverage
Apple, Others, Object to $87.7M Fee Request In IPhone Throttling Settlement The Recorder (October 7, 2020)
Press Coverage
Crowell & Moring Named Law Firm of the Year by Public Law Center (August 28, 2020)
Firm News / Announcement
"Turning Fees into Funds: Maximizing Recovery in the MC/Visa Interchange Fee Litigation," Crowell & Moring's Retail & Consumer Products Law Observer (March 9, 2020). Authors: Daniel A. Sasse, Deborah E. Arbabi, Charlene Sun and Christy Markos.
Sixth Annual In-House Recovery Conference, Dana Point, CA (March 4-6, 2020). Meeting Organizers: Daniel A. Sasse and Deborah E. Arbabi.

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Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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