Atty. Mark J. O'Brien

Atty. Mark J. O'Brien

Mark J. O'Brien is a lawyer practicing criminal law.

Bradford Bradford 28 yrs experience 28 year
Call (617) 228-4456 Book Appointment

Profile Summary

About Mark J. O'Brien at a glance

Mark J. O'Brien is a Member based in Bradford, Massachusetts, practicing at Law Office of Mark J. O'Brien. They have 28+ years of legal experience, licensed to practice since 1998. Their practice focuses on criminal defense. Admitted to practice in Massachusetts (1998). Educated at Massachusetts School of Law (J.D., 1997) and Western New England College (B.S., 1989). Serands clients in Bradford, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark J. O'Brien is a lawyer practicing criminal law
  • Mark J. received a B.S. degree from Western New England College in 1989, and has been licensed for 28 years
  • Mark J. practices at Law Office of Mark J. O'Brien in Bradford, MA

Practice Areas Explained

Mark J. O'Brien's Areas of Practice

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

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Mark J. O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Massachusetts →

Jurisdictional Context

Why local counsel matters in Massachusetts

Practicing law in Massachusetts. Legal matters in Massachusetts are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Bradford are typically filed in the local municipal court or the appropriate Massachusetts state district court, depending on subject matter and amount in controversy. An attorney licensed in Massachusetts 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 Massachusetts courts without local counsel or pro hac vice admission.

Looking for additional Massachusetts attorneys? Browse all attorneys in Bradford or all attorneys in Massachusetts.

Frequently Asked

Common questions about Mark J. O'Brien

Where is Mark J. O'Brien's law office located?
Mark J. O'Brien's law practice is located in Bradford, Massachusetts. The firm is Law Office of Mark J. O'Brien. You can contact the office directly through this profile page.
What practice areas does Mark J. O'Brien handle?
Mark J. O'Brien focuses on criminal defense. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Mark J. O'Brien practiced law?
Mark J. O'Brien has 28+ years of legal experience and has been licensed since 1998.
Where did Mark J. O'Brien go to law school?
Mark J. O'Brien earned their education at (J.D., 1997); (B.S., 1989).
How can I contact Mark J. O'Brien for a consultation?
You can contact Mark J. 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.

Practice Areas

Education

J.D.
Massachusetts School of Law
- 1997
B.S.
Western New England College
- 1989

Bar Admissions

Massachusetts
Admitted: 1998

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