Atty. Patrick Kevin O'Brien

Atty. Patrick Kevin O'Brien

Patrick Kevin O'Brien is a lawyer practicing civil litigation, franchise law, business litigation and 4 other areas of law. Patrick received a B.A. degree from Loyola Marymount University in 1990, and has been licensed for 33 years.

Petaluma Petaluma 33 yrs experience 33 year
Call (949) 792-4640 Book Appointment

Profile Summary

About Patrick Kevin O'Brien at a glance

Patrick Kevin O'Brien is a Managing Partner based in Petaluma, California, practicing at O’Brien Law P.C.. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on personal injury, employment, business, franchise, and slip & fall. Admitted to practice in California (1993). Educated at Gonzaga University (J.D., 1993) and Loyola Marymount University (B.A., 1990). Recognitions include Peer Reviewed. Serands clients in Petaluma, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick Kevin O'Brien is a lawyer practicing civil litigation, franchise law, business litigation and 4 other areas of law
  • Patrick received a B.A. degree from Loyola Marymount University in 1990, and has been licensed for 33 years
  • Patrick practices at O’Brien Law P.C. in Petaluma, CA

Practice Areas Explained

Patrick Kevin O'Brien's Areas of Practice

Each practice area below reflects the types of cases Patrick Kevin O'Brien handles, with a brief overview of what that area of law covers.

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Patrick Kevin O'Brien is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in California →

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Patrick Kevin O'Brien is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Patrick Kevin O'Brien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Franchise Law

Patrick Kevin O'Brien is one of 1,942 franchise attorneys indexed nationally. Browse franchise attorneys in California →

Slip & Fall / Premises Liability

Patrick Kevin O'Brien is one of 29,473 slip & fall attorneys indexed nationally. Browse slip & fall attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing 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 Petaluma 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 Petaluma or all attorneys in California.

Frequently Asked

Common questions about Patrick Kevin O'Brien

Where is Patrick Kevin O'Brien's law office located?
Patrick Kevin O'Brien's law practice is located in Petaluma, California. The firm is O’Brien Law P.C.. You can contact the office directly through this profile page.
What practice areas does Patrick Kevin O'Brien handle?
Patrick Kevin O'Brien focuses on personal injury, employment, business, franchise, slip & fall. Each practice area listed reflects experience handling cases of that type in California.
How long has Patrick Kevin O'Brien practiced law?
Patrick Kevin O'Brien has 33+ years of legal experience and has been licensed since 1993.
Where did Patrick Kevin O'Brien go to law school?
Patrick Kevin O'Brien earned their education at (J.D., 1993); (B.A., 1990).
How can I contact Patrick Kevin O'Brien for a consultation?
You can contact Patrick Kevin 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.
What awards or recognition has Patrick Kevin O'Brien received?
Patrick Kevin O'Brien's notable recognition includes: Peer Reviewed.

Education

J.D.
Gonzaga University
- 1993
B.A.
Loyola Marymount University
- 1990

Awards

Peer Reviewed

Bar Admissions

California
Admitted: 1993

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