Atty. Thomas Daniel O'Brien

Atty. Thomas Daniel O'Brien

Thomas Daniel O'Brien is a lawyer. Thomas received a M.B.A. degree from Columbia University in 1998, and has been licensed for 23 years.

Sunnyvale Sunnyvale 23 J. Erfahrung 23 year
Call (415) 857-9729 Book Appointment

Profile Summary

About Thomas Daniel O'Brien at a glance

Thomas Daniel O'Brien is a Monster Worldwide, Inc. based in Sunnyvale, California. They have 23+ years of legal experience, licensed to practice since 2003. Admitted to practice in New York (2003) and California (2005). Educated at Columbia University (M.B.A. Stanford, 1998). Serands clients in Sunnyvale, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Thomas Daniel O'Brien is a lawyer
  • Thomas received a M.B.A. degree from Columbia University in 1998, and has been licensed for 23 years
  • Thomas practices in Sunnyvale, CA

Jurisdictional Context

Why local counsel matters in California

Practforg law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Sunnyvale are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Sunnyvale or all attorneys in California.

Frequently Asked

Common questions about Thomas Daniel O'Brien

Where is Thomas Daniel O'Brien's law office located?
Thomas Daniel O'Brien's law practice is located in Sunnyvale, California. You can contact the office directly through this profile page.
How long has Thomas Daniel O'Brien practiced law?
Thomas Daniel O'Brien has 23+ years of legal experience and has been licensed since 2003.
Where did Thomas Daniel O'Brien go to law school?
Thomas Daniel O'Brien earned their education at (M.B.A. Stanford, 1998).
How can I contact Thomas Daniel O'Brien for a consultation?
You can contact Thomas Daniel O'Brien directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

M.B.A. Stanford
Columbia University
- 1998

Bar Admissions

New York
Admitted: 2003
California
Admitted: 2005

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