Atty. William A. Trafidlo

Atty. William A. Trafidlo

Mr. William A.

Portsmouth Portsmouth 48 yrs experience 48 year
Call (603) 956-9119 Book Appointment

Profile Summary

About William A. Trafidlo at a glance

William A. Trafidlo is a Member based in Portsmouth, New Hampshire, practicing at The Law Offices of William A. Trafidlo, P.A.. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on dui/dwi, drug crimes, criminal defense, white collar, and dv defense. Admitted to practice in Massachusetts (1978), U.S. District Court, District Of Massachusetts (1979), U.S. Court Of Appeals, First Circuit (1980), and Hampshire (1991). Educated at Suffolk University (J.D., 1978) and University of New Hampshire (B.A., 1973). Active member of Massachusetts and New Hampshire Bar Associations National Association of Criminal Defense Lawyers New Hampshire Defense Lawyers Association. Serands clients in Portsmouth, NH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. William A. Trafidlo practices at The Law Offices of William A. Trafidlo, P.A
  • Read Full Bio

Practice Areas Explained

William A. Trafidlo's Areas of Practice

Each practice area below reflects the types of cases William A. Trafidlo handles, with a brief overview of what that area of law covers.

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

William A. Trafidlo is one of 29,977 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in New Hampshire →

Drug Crimes

William A. Trafidlo is one of 6,966 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in New Hampshire →

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.

William A. Trafidlo is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New Hampshire →

White Collar Crimes

William A. Trafidlo is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in New Hampshire →

Domestic Violence Defense

William A. Trafidlo is one of 12,315 dv defense attorneys indexed nationally. Browse dv defense attorneys in New Hampshire →

Jurisdictional Context

Why local counsel matters in New Hampshire

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

Looking for additional New Hampshire attorneys? Browse all attorneys in Portsmouth or all attorneys in New Hampshire.

Frequently Asked

Common questions about William A. Trafidlo

Where is William A. Trafidlo's law office located?
William A. Trafidlo's law practice is located in Portsmouth, New Hampshire. The firm is The Law Offices of William A. Trafidlo, P.A.. You can contact the office directly through this profile page.
What practice areas does William A. Trafidlo handle?
William A. Trafidlo focuses on dui/dwi, drug crimes, criminal defense, white collar, dv defense. Each practice area listed reflects experience handling cases of that type in New Hampshire.
How long has William A. Trafidlo practiced law?
William A. Trafidlo has 48+ years of legal experience and has been licensed since 1978.
Where did William A. Trafidlo go to law school?
William A. Trafidlo earned their education at (J.D., 1978); (B.A., 1973).
How can I contact William A. Trafidlo for a consultation?
You can contact William A. Trafidlo 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.
Suffolk University
- 1978
B.A.
University of New Hampshire
- 1973

Bar Admissions

Massachusetts
Admitted: 1978
U.S. District Court, District Of Massachusetts
Admitted: 1979
U.S. Court Of Appeals, First Circuit
Admitted: 1980
Hampshire
Admitted: 1991
U.S. District Court, District Of New Hampshire
Admitted: 1991
Maine
Admitted: 1992
U.S. District Court, District Of Maine
Admitted: 1992
U.S. Supreme Court
Admitted: 1993

Reviews

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