Atty. William Barrie Thornton

Atty. William Barrie Thornton

William Barrie Thornton is a lawyer practicing estate planning, taxation, probate. William received a B.A. degree from University of Rhode Island in 1957, and has been licensed for 60 years.

Westerly Westerly 60 yrs experience 60 year
Call (401) 622-4401 Book Appointment

Profile Summary

About William Barrie Thornton at a glance

William Barrie Thornton is an Of Counsel based in Westerly, Rhode Island, practicing at Thornton, Cavaliere & Arsenault, Inc.. They have 60+ years of legal experience, licensed to practice since 1966. Their practice focuses on probate, estate planning, and tax. Admitted to practice in Rhode Island (1966), U.S. District Court (1967), and Connecticut (1968). Educated at University of Florida (J.D., 1965) and University of Rhode Island (B.A. University, 1957). Recognitions include AV Preeminent. Active member of Washington County, New London County, Rhode Island and Connecticut Bar Associations. Serands clients in Westerly, RI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Barrie Thornton is a lawyer practicing estate planning, taxation, probate
  • William received a B.A. degree from University of Rhode Island in 1957, and has been licensed for 60 years
  • William practices at Thornton, Cavaliere & Arsenault, Inc. in Westerly, RI

Practice Areas Explained

William Barrie Thornton's Areas of Practice

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

Probate

William Barrie Thornton is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Rhode Island →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

William Barrie Thornton is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Rhode Island →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

William Barrie Thornton is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Rhode Island →

Jurisdictional Context

Why local counsel matters in Rhode Island

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

Looking for additional Rhode Island attorneys? Browse all attorneys in Westerly or all attorneys in Rhode Island.

Frequently Asked

Common questions about William Barrie Thornton

Where is William Barrie Thornton's law office located?
William Barrie Thornton's law practice is located in Westerly, Rhode Island. The firm is Thornton, Cavaliere & Arsenault, Inc.. You can contact the office directly through this profile page.
What practice areas does William Barrie Thornton handle?
William Barrie Thornton focuses on probate, estate planning, tax. Each practice area listed reflects experience handling cases of that type in Rhode Island.
How long has William Barrie Thornton practiced law?
William Barrie Thornton has 60+ years of legal experience and has been licensed since 1966.
Where did William Barrie Thornton go to law school?
William Barrie Thornton earned their education at (J.D., 1965); (B.A. University, 1957).
How can I contact William Barrie Thornton for a consultation?
You can contact William Barrie Thornton 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 Barrie Thornton received?
William Barrie Thornton's notable recognition includes: AV Preeminent.

Education

J.D.
University of Florida
- 1965
B.A. University
University of Rhode Island
- 1957

Awards

AV Preeminent

Bar Admissions

Rhode Island
Admitted: 1966
U.S. District Court
Admitted: 1967
Connecticut
Admitted: 1968

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