Atty. Dennis E McMahon, Sr.

Atty. Dennis E McMahon, Sr.

Dennis E McMahon, Sr. is a lawyer practicing workers compensation, personal injury, torts and 8 other areas of law. Dennis received a A.B. degree from College of the Holy Cross in 1971, and has been licensed for 49 years.

Chestnut Hill Chestnut Hill 49 yrs experience 49 year
Call (857) 855-9182 Book Appointment

Profile Summary

About Dennis E McMahon, Sr. at a glance

Dennis E McMahon, Sr. is a Member based in Chestnut Hill, Massachusetts, practicing at McMahon Law Offices. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on wills, contracts, probate, personal injury, and criminal defense. Admitted to practice in Massachusetts (1977) and Rhode Island (1977). Educated at New England School of Law (J.D., 1976) and College of the Holy Cross (A.B., 1971). Serands clients in Chestnut Hill, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Dennis E McMahon, Sr. is a lawyer practicing workers compensation, personal injury, torts and 8 other areas of law
  • Dennis received a A.B. degree from College of the Holy Cross in 1971, and has been licensed for 49 years
  • Dennis practices at McMahon Law Offices in Chestnut Hill, MA

Practice Areas Explained

Dennis E McMahon, Sr.'s Areas of Practice

Each practice area below reflects the types of cases Dennis E McMahon, Sr. handles, with a brief overview of what that area of law covers.

Wills

Dennis E McMahon, Sr. is one of 34,541 wills attorneys indexed nationally. Browse wills attorneys in Massachusetts →

Contracts

Dennis E McMahon, Sr. is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Massachusetts →

Probate

Dennis E McMahon, Sr. is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Massachusetts →

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.

Dennis E McMahon, Sr. is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Massachusetts →

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.

Dennis E McMahon, Sr. 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 Chestnut Hill 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 Chestnut Hill or all attorneys in Massachusetts.

Frequently Asked

Common questions about Dennis E McMahon, Sr.

Where is Dennis E McMahon, Sr.'s law office located?
Dennis E McMahon, Sr.'s law practice is located in Chestnut Hill, Massachusetts. The firm is McMahon Law Offices. You can contact the office directly through this profile page.
What practice areas does Dennis E McMahon, Sr. handle?
Dennis E McMahon, Sr. focuses on wills, contracts, probate, personal injury, criminal defense. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Dennis E McMahon, Sr. practiced law?
Dennis E McMahon, Sr. has 49+ years of legal experience and has been licensed since 1977.
Where did Dennis E McMahon, Sr. go to law school?
Dennis E McMahon, Sr. earned their education at (J.D., 1976); (A.B., 1971).
How can I contact Dennis E McMahon, Sr. for a consultation?
You can contact Dennis E McMahon, Sr. 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.

Education

J.D.
New England School of Law
- 1976
A.B.
College of the Holy Cross
- 1971

Bar Admissions

Massachusetts
Admitted: 1977
Rhode Island
Admitted: 1977

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