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Cassidy O'Sullivan


Hueston Hennigan LLP

Recognized since 2026

Los Angeles, California

Practice Areas

Commercial Litigation

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Cassidy O'Sullivan is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation.

Cassidy, who practices law in Los Angeles, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cassidy is held by other top lawyers in the same geographic and legal practice area.

Location
  • 523 West Sixth Street, Suite 400
    Los Angeles, CA 90014
Education
  • New York University, J.D., graduated 2021

Hueston Hennigan LLP
Headquarters: Los Angeles, California

14 The Best Lawyers in America® awards

16 Best Lawyers: Ones to Watch® in America awards

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Recognized in Best Lawyers: Ones to Watch® in America 2026 for work in:
  • Commercial Litigation

Publications

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