Atty. Mark Madison O'Brien

Atty. Mark Madison O'Brien

Mark Madison O'Brien is a lawyer practicing real estate law, civil practice, real property law. Mark received a A.B. degree from University of California, and has been licensed for 55 years.

Monrovia Monrovia 55 yrs experience 55 year
Call (626) 999-3560 Book Appointment

Profile Summary

About Mark Madison O'Brien at a glance

Mark Madison O'Brien is a real estate and litigation attorney based in Monrovia, California. They have 55+ years of legal experience, licensed to practice since 1971. Admitted to practice in California (1971). Educated at University of Southern California J.D. (—) and University of California A.B. (—). Recognitions include BV Distinguished. Serands clients in Monrovia, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Madison O'Brien is a lawyer practicing real estate law, civil practice, real property law
  • Mark received a A.B. degree from University of California, and has been licensed for 55 years
  • Mark practices in Monrovia, CA

Practice Areas Explained

Mark Madison O'Brien's Areas of Practice

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

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Mark Madison O'Brien is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark Madison O'Brien is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 Monrovia 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 Monrovia or all attorneys in California.

Frequently Asked

Common questions about Mark Madison O'Brien

Where is Mark Madison O'Brien's law office located?
Mark Madison O'Brien's law practice is located in Monrovia, California. You can contact the office directly through this profile page.
What practice areas does Mark Madison O'Brien handle?
Mark Madison O'Brien focuses on real estate, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Madison O'Brien practiced law?
Mark Madison O'Brien has 55+ years of legal experience and has been licensed since 1971.
Where did Mark Madison O'Brien go to law school?
Mark Madison O'Brien earned their education at (—); (—).
How can I contact Mark Madison O'Brien for a consultation?
You can contact Mark Madison 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 Mark Madison O'Brien received?
Mark Madison O'Brien's notable recognition includes: BV Distinguished.

Education

University of Southern California J.D.
- In Progress
University of California A.B.
- In Progress

Awards

BV Distinguished

Bar Admissions

California
Admitted: 1971

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