Thomas P. O'Brien

4.5 (40 reviews )

Los Angeles California United States

Criminal Defense: White-Collar Litigation - Securities

Recognized in Best Attorney USA since 2016

310-586-7700 Website

About Thomas

Thomas P. O'Brien is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Litigation - Securities.Thomas P., who practices law in Los Angeles, California, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas P. is held by other top lawyers in the same geographic and legal practice area.

Thomas P. O'Brien is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Litigation - Securities.

Thomas P., who practices law in Los Angeles, California, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas P. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Criminal Defense: White-Collar

Litigation - Securities

Education

University of San Diego

Awards & Recognition

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.5 / 5

40 Reviews

1,047 Profile Views

Abraham Crona

Jan 27, 2026

So glad I called Thomas P. O'Brien to handle my Criminal Defense: White-Collar law case in Los Angeles

Thomas P. O'Brien has been doing this since Recognized in Best Lawyers since 2016, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my lega...

Naomi Jacobi

Jan 27, 2026

Simply amazing representation from Thomas P. O'Brien's office during my recent legal matter

Short and sweet: Thomas P. O'Brien is the real deal and a true professional in the field of Criminal Defense: White-Collar law. If you're in Los Angeles and need help with your legal issues, call them...

Rosie Cole

Jan 27, 2026

A very good experience overall with the entire team at Thomas P. O'Brien's legal practice

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

Joanna McGlynn

Jan 27, 2026

Excellent legal representation provided by Thomas P. O'Brien for my Criminal Defense: White-Collar law case

Thomas P. O'Brien 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 tak...

Jay Feil

Jan 27, 2026

Excellent legal representation provided by Thomas P. O'Brien for my Criminal Defense: White-Collar law case

If you need a Criminal Defense: White-Collar law lawyer, Thomas P. O'Brien is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details o...