Atty. Thomas L. Sansonetti

Atty. Thomas L. Sansonetti

Mr. Thomas L.

Cheyenne Cheyenne 50 yrs experience 50 year
Call (307) 400-3932 Book Appointment

Profile Summary

About Thomas L. Sansonetti at a glance

Thomas L. Sansonetti is a Partner based in Cheyenne, Wyoming, practicing at Holland & Hart LLP. They have 50+ years of legal experience, licensed to practice since 1976. Their practice focuses on litigation, environmental, government, and energy. Admitted to practice in Wyoming (1976), District of Columbia (1978), and Colorado (2011). Educated at Washington & Lee University (J.D., 1976) and University of Virginia (B.A. University, 1971). Recognitions include AV Preeminent. Serands clients in Cheyenne, WY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Thomas L. Sansonetti is a lawyer practicing natural resources law, environmental law, indian law and 10 other areas of law
  • Thomas received a B.A. degree from University of Virginia in 1971, and has been licensed for 50 years
  • Thomas practices at Holland & Hart LLP in Cheyenne, WY and 1 other location

Practice Areas Explained

Thomas L. Sansonetti's Areas of Practice

Each practice area below reflects the types of cases Thomas L. Sansonetti handles, with a brief overview of what that area of law covers.

Civil Litigation

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

Thomas L. Sansonetti is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Wyoming →

Environmental Law

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

Thomas L. Sansonetti is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Wyoming →

Government & Administrative Law

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

Thomas L. Sansonetti is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Wyoming →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Thomas L. Sansonetti is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Wyoming →

Jurisdictional Context

Why local counsel matters in Wyoming

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

Looking for additional Wyoming attorneys? Browse all attorneys in Cheyenne or all attorneys in Wyoming.

Frequently Asked

Common questions about Thomas L. Sansonetti

Where is Thomas L. Sansonetti's law office located?
Thomas L. Sansonetti's law practice is located in Cheyenne, Wyoming. The firm is Holland & Hart LLP. You can contact the office directly through this profile page.
What practice areas does Thomas L. Sansonetti handle?
Thomas L. Sansonetti focuses on litigation, environmental, government, energy. Each practice area listed reflects experience handling cases of that type in Wyoming.
How long has Thomas L. Sansonetti practiced law?
Thomas L. Sansonetti has 50+ years of legal experience and has been licensed since 1976.
Where did Thomas L. Sansonetti go to law school?
Thomas L. Sansonetti earned their education at (J.D., 1976); (B.A. University, 1971).
How can I contact Thomas L. Sansonetti for a consultation?
You can contact Thomas L. Sansonetti 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 Thomas L. Sansonetti received?
Thomas L. Sansonetti's notable recognition includes: AV Preeminent.

Education

J.D.
Washington & Lee University
- 1976
B.A. University
University of Virginia
- 1971

Awards

AV Preeminent

Bar Admissions

Wyoming
Admitted: 1976
District of Columbia
Admitted: 1978
Colorado
Admitted: 2011

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