Cassidy O'Sullivan

4.5 (32 reviews )

Los Angeles California United States

Commercial Litigation

Recognized in Ones to Watch since 2026

213-788-4340 Website

About Cassidy

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.

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.

Practice Areas

Commercial Litigation

Education

New York University

Awards & Recognition

Recognized: Commercial Litigation

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Reviews

4.5 / 5

32 Reviews

1,038 Profile Views

Ed Koss

Feb 04, 2026

A very good experience overall with the entire team at Cassidy O'Sullivan's legal practice

I've worked with a few lawyers in Los Angeles over the years, but Cassidy O'Sullivan stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times....

Andres Larson

Feb 04, 2026

So glad I called Cassidy O'Sullivan to handle my Commercial Litigation law case in Los Angeles

I wasn't sure who to call for my Commercial Litigation law problem, but I'm so glad I went with Cassidy O'Sullivan. They really listened to me and understood my situation. It was such a relief to have...