Atty. Mark Douglas Cahill

Atty. Mark Douglas Cahill

Mark Douglas Cahill is a lawyer practicing appeals, insurance, reinsurance and 3 other areas of law. Mark received a A.B. degree from Rutgers University in 1980, and has been licensed for 42 years.

Boston Boston 42 yrs experience 42 year
Call (781) 797-3448 Book Appointment

Profile Summary

About Mark Douglas Cahill at a glance

Mark Douglas Cahill is a Practice Group Leader based in Boston, Massachusetts, practicing at Choate, Hall & Stewart LLP. They have 42+ years of legal experience, licensed to practice since 1984. Their practice focuses on business, class action, litigation, insurance, and appellate. Admitted to practice in Iowa (1984) and Massachusetts U.S. District Court, District of Massachusetts U.S. Court of Appeals, First Circuit Il (1985). Educated at Drake University Law School (J.D., 1984) and Rutgers University (A.B., 1980). Recognitions include AV Preeminent. Active member of Boston Bar Association. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Douglas Cahill is a lawyer practicing appeals, insurance, reinsurance and 3 other areas of law
  • Mark received a A.B. degree from Rutgers University in 1980, and has been licensed for 42 years
  • Mark practices at Choate, Hall & Stewart LLP in Boston, MA

Practice Areas Explained

Mark Douglas Cahill's Areas of Practice

Each practice area below reflects the types of cases Mark Douglas Cahill 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 Douglas Cahill is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Massachusetts →

Class Action

Mark Douglas Cahill is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Massachusetts →

Civil Litigation

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

Mark Douglas Cahill is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

Mark Douglas Cahill is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in Massachusetts →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Mark Douglas Cahill is one of 86,319 appellate attorneys indexed nationally. Browse appellate 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 Boston 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 Boston or all attorneys in Massachusetts.

Frequently Asked

Common questions about Mark Douglas Cahill

Where is Mark Douglas Cahill's law office located?
Mark Douglas Cahill's law practice is located in Boston, Massachusetts. The firm is Choate, Hall & Stewart LLP. You can contact the office directly through this profile page.
What practice areas does Mark Douglas Cahill handle?
Mark Douglas Cahill focuses on business, class action, litigation, insurance, appellate. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Mark Douglas Cahill practiced law?
Mark Douglas Cahill has 42+ years of legal experience and has been licensed since 1984.
Where did Mark Douglas Cahill go to law school?
Mark Douglas Cahill earned their education at (J.D., 1984); (A.B., 1980).
How can I contact Mark Douglas Cahill for a consultation?
You can contact Mark Douglas Cahill 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 Douglas Cahill received?
Mark Douglas Cahill's notable recognition includes: AV Preeminent.

Education

J.D.
Drake University Law School
- 1984
A.B.
Rutgers University
- 1980

Awards

AV Preeminent

Bar Admissions

Iowa
Admitted: 1984
Massachusetts U.S. District Court, District of Massachusetts U.S. Court of Appeals, First Circuit Il
Admitted: 1985

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