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

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.5 / 5

32 Reviews

1,031 Profile Views

Nettie Bruen

Feb 04, 2026

Excellent legal representation provided by Cassidy O'Sullivan for my Commercial Litigation law case

Really glad I found Cassidy O'Sullivan for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're i...

Kristina Hintz

Feb 04, 2026

Absolutely Great! I couldn't be happier with the service from Cassidy O'Sullivan

Edwin Fahey

Feb 04, 2026

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

It's hard finding a reliable lawyer these days, but Cassidy O'Sullivan in Los Angeles is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, resp...

Carlton Von

Feb 04, 2026

Reliable lawyer you can count on - Cassidy O'Sullivan provided excellent service throughout

Solid experience overall with the law firm of Cassidy O'Sullivan. They know Commercial Litigation law inside and out and gave me great advice. Very helpful and got the job done exactly as they said th...

Damon Robel

Feb 04, 2026

Professional service and clear communication provided by Cassidy O'Sullivan in Los Angeles