Atty. William Francis Sinnott

Atty. William Francis Sinnott

William Francis Sinnott is a lawyer practicing government, election campaigns & political law, litigation and 2 other areas of law. William received a B.A. degree from College of the Holy Cross in 1979, and has been licensed for 41 years.

Boston Boston 41 yrs experience 41 year
Call (959) 256-2793 Book Appointment

Profile Summary

About William Francis Sinnott at a glance

William Francis Sinnott is a criminal defense, litigation, government, and adr attorney based in Boston, Massachusetts. They have 41+ years of legal experience, licensed to practice since 1985. Admitted to practice in Massachusetts (1985). Educated at Suffolk University (J.D., 1985) and College of the Holy Cross (B.A., 1979). Recognitions include AV Preeminent. Serands clients in Boston, MA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Francis Sinnott is a lawyer practicing government, election campaigns & political law, litigation and 2 other areas of law
  • William received a B.A. degree from College of the Holy Cross in 1979, and has been licensed for 41 years
  • William practices in Boston, MA

Practice Areas Explained

William Francis Sinnott's Areas of Practice

Each practice area below reflects the types of cases William Francis Sinnott 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.

William Francis Sinnott is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Massachusetts →

Civil Litigation

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

William Francis Sinnott is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Massachusetts →

Government & Administrative Law

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

William Francis Sinnott is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Massachusetts →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

William Francis Sinnott is one of 73,906 adr attorneys indexed nationally. Browse adr 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 William Francis Sinnott

Where is William Francis Sinnott's law office located?
William Francis Sinnott's law practice is located in Boston, Massachusetts. You can contact the office directly through this profile page.
What practice areas does William Francis Sinnott handle?
William Francis Sinnott focuses on criminal defense, litigation, government, adr. Each practice area listed reflects experience handling cases of that type in Massachusetts.
How long has William Francis Sinnott practiced law?
William Francis Sinnott has 41+ years of legal experience and has been licensed since 1985.
Where did William Francis Sinnott go to law school?
William Francis Sinnott earned their education at (J.D., 1985); (B.A., 1979).
How can I contact William Francis Sinnott for a consultation?
You can contact William Francis Sinnott 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 William Francis Sinnott received?
William Francis Sinnott's notable recognition includes: AV Preeminent.

Education

J.D.
Suffolk University
- 1985
B.A.
College of the Holy Cross
- 1979

Awards

AV Preeminent

Bar Admissions

Massachusetts
Admitted: 1985

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