Atty. Mark S. O'Brien

Atty. Mark S. O'Brien

Mark S. O'Brien is a lawyer practicing business law.

Augusta Augusta 42 yrs experience 42 year
Call (207) 687-3099 Book Appointment

Profile Summary

About Mark S. O'Brien at a glance

Mark S. O'Brien is a Dist. Coun., U.S. Small Bus. Admn. based in Augusta, Maine. They have 42+ years of legal experience, licensed to practice since 1984. Their practice focuses on business. Admitted to practice in Massachusetts (1985). Educated at University of Maine, School of Law (J.D., 1984) and University of Maine (B.A., 1981). Serands clients in Augusta, ME and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark S. O'Brien is a lawyer practicing business law
  • Mark received a B.A. degree from University of Maine in 1981, and has been licensed for 42 years
  • Mark practices in Augusta, ME

Practice Areas Explained

Mark S. O'Brien's Areas of Practice

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

Business & Corporate Law

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

Mark S. O'Brien is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Maine →

Jurisdictional Context

Why local counsel matters in Maine

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

Looking for additional Maine attorneys? Browse all attorneys in Augusta or all attorneys in Maine.

Frequently Asked

Common questions about Mark S. O'Brien

Where is Mark S. O'Brien's law office located?
Mark S. O'Brien's law practice is located in Augusta, Maine. You can contact the office directly through this profile page.
What practice areas does Mark S. O'Brien handle?
Mark S. O'Brien focuses on business. Each practice area listed reflects experience handling cases of that type in Maine.
How long has Mark S. O'Brien practiced law?
Mark S. O'Brien has 42+ years of legal experience and has been licensed since 1984.
Where did Mark S. O'Brien go to law school?
Mark S. O'Brien earned their education at (J.D., 1984); (B.A., 1981).
How can I contact Mark S. O'Brien for a consultation?
You can contact Mark S. 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.
University of Maine, School of Law
- 1984
B.A.
University of Maine
- 1981

Bar Admissions

Massachusetts
Admitted: 1985

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