Atty. Thomas Shaun Sullivan

Atty. Thomas Shaun Sullivan

Thomas Shaun Sullivan is a lawyer practicing natural resources law, water law, environmental law. Thomas received a B.A. degree from Colorado College in 1979, and has been licensed for 43 years.

Denver Denver 43 yrs experience 43 year
Call (719) 521-3441 Book Appointment

Profile Summary

About Thomas Shaun Sullivan at a glance

Thomas Shaun Sullivan is a Denver City Atty's Off. based in Denver, Colorado. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on environmental. Admitted to practice in Colorado (1983). Educated at Georgetown University (J.D., 1983) and Colorado College (B.A., 1979). Recognitions include AV Preeminent. Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Thomas Shaun Sullivan is a lawyer practicing natural resources law, water law, environmental law
  • Thomas received a B.A. degree from Colorado College in 1979, and has been licensed for 43 years
  • Thomas practices in Denver, CO

Practice Areas Explained

Thomas Shaun Sullivan's Areas of Practice

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

Environmental Law

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

Thomas Shaun Sullivan is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Colorado →

Jurisdictional Context

Why local counsel matters in Colorado

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

Looking for additional Colorado attorneys? Browse all attorneys in Denver or all attorneys in Colorado.

Frequently Asked

Common questions about Thomas Shaun Sullivan

Where is Thomas Shaun Sullivan's law office located?
Thomas Shaun Sullivan's law practice is located in Denver, Colorado. You can contact the office directly through this profile page.
What practice areas does Thomas Shaun Sullivan handle?
Thomas Shaun Sullivan focuses on environmental. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Thomas Shaun Sullivan practiced law?
Thomas Shaun Sullivan has 43+ years of legal experience and has been licensed since 1983.
Where did Thomas Shaun Sullivan go to law school?
Thomas Shaun Sullivan earned their education at (J.D., 1983); (B.A., 1979).
How can I contact Thomas Shaun Sullivan for a consultation?
You can contact Thomas Shaun Sullivan 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 Shaun Sullivan received?
Thomas Shaun Sullivan's notable recognition includes: AV Preeminent.

Education

J.D.
Georgetown University
- 1983
B.A.
Colorado College
- 1979

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1983

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