Atty. Joseph L. Duffy

Atty. Joseph L. Duffy

Joseph L. Duffy is a lawyer practicing administrative law, criminal law, environmental law and 3 other areas of law.

Yarmouth Port Yarmouth Port 21 yrs experience 21 year
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Profile Summary

About Joseph L. Duffy at a glance

Joseph L. Duffy is a Member based in Yarmouth Port, Massachusetts, practicing at Law Office of Joseph L. Duffy. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on criminal defense, environmental, government, military, and appellate. Admitted to practice in Massachusetts (2005) and U.S. Court of Appeals for Veterans Claims (2010). Educated at New England School of Law (J.D., 2004) and Excelsior College (B.S., 1993). Serands clients in Yarmouth Port, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Joseph L. Duffy is a lawyer practicing administrative law, criminal law, environmental law and 3 other areas of law
  • Joseph received a B.S. degree from Excelsior College in 1993, and has been licensed for 21 years
  • Joseph practices at Law Office of Joseph L. Duffy in Yarmouth Port, MA

Practice Areas Explained

Joseph L. Duffy's Areas of Practice

Each practice area below reflects the types of cases Joseph L. Duffy 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.

Joseph L. Duffy is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Massachusetts →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Joseph L. Duffy is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Massachusetts →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

Joseph L. Duffy is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Massachusetts →

Military Law

Military attorneys for court-martial, discharge upgrades, veterans benefits, and military family matters.

Joseph L. Duffy is one of 8,613 military attorneys indexed nationally. Browse military attorneys in Massachusetts →

Appellate Practice

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

Joseph L. Duffy 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 Yarmouth Port 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 Yarmouth Port or all attorneys in Massachusetts.

Frequently Asked

Common questions about Joseph L. Duffy

Where is Joseph L. Duffy's law office located?
Joseph L. Duffy's law practice is located in Yarmouth Port, Massachusetts. The firm is Law Office of Joseph L. Duffy. You can contact the office directly through this profile page.
What practice areas does Joseph L. Duffy handle?
Joseph L. Duffy focuses on criminal defense, environmental, government, military, appellate. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has Joseph L. Duffy practiced law?
Joseph L. Duffy has 21+ years of legal experience and has been licensed since 2005.
Where did Joseph L. Duffy go to law school?
Joseph L. Duffy earned their education at (J.D., 2004); (B.S., 1993).
How can I contact Joseph L. Duffy for a consultation?
You can contact Joseph L. Duffy 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
- 2004
B.S.
Excelsior College
- 1993

Bar Admissions

Massachusetts
Admitted: 2005
U.S. Court of Appeals for Veterans Claims
Admitted: 2010

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