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

1,037 Profile Views

Clifton Cruickshank

Feb 04, 2026

Highly recommend Cassidy O'Sullivan for anyone needing expert Commercial Litigation law help in California

Honestly, I can't thank Cassidy O'Sullivan enough for everything they've done for me. They really know their stuff when it comes to Commercial Litigation law and it shows in the results. 10/10 would r...

Franklin Kerluke

Feb 04, 2026

Five stars for the incredible team at Cassidy O'Sullivan in Los Angeles - they are amazing

Cassidy O'Sullivan is fantastic and very professional. Don't hesitate to hire them if you're in California and need help. They really know their stuff and will go the extra mile to make sure you're ta...

Amelia Smitham

Feb 04, 2026

Highly recommend Cassidy O'Sullivan for anyone needing expert Commercial Litigation law help in California

I didn't think I'd find such a good lawyer in California, but here we are and I am thoroughly impressed. Cassidy O'Sullivan is just awesome and exceeded all my expectations. No complaints at all! They...

Kara Stoltenberg

Feb 04, 2026

The absolute best in Los Angeles for Commercial Litigation law - and I mean that from the bottom of my heart

Pete O'Hara

Feb 04, 2026

Solid work and professional service from Cassidy O'Sullivan in Los Angeles for California residents

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...