Atty. William Joseph Leone

Atty. William Joseph Leone

William Joseph Leone is a lawyer practicing securities offerings, antitrust & trade law, class action and 10 other areas of law. William received a B.A. degree from Colorado State University in 1978, and has been licensed for 45 years.

Denver Denver 45 yrs experience 45 year
Call (720) 797-6883 Book Appointment

Profile Summary

About William Joseph Leone at a glance

William Joseph Leone is a Partner based in Denver, Colorado, practicing at Norton Rose Fulbright. They have 45+ years of legal experience, licensed to practice since 1981. Their practice focuses on business, class action, white collar, securities, and litigation. Admitted to practice in Colorado (1981), U.S. District Court, District of Colorado (1982), U.S. District Court, District of Wyoming, U.S. Court of Appeals, Tenth Circuit and U.S. District Cou (1982), and U.S. District Court, District of Delaware (1989). Educated at University of Colorado (J.D., 1981) and Colorado State University (B.A., 1978). Recognitions include AV Preeminent. Active member of Adams/Broomfield Bar Association. Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Joseph Leone is a lawyer practicing securities offerings, antitrust & trade law, class action and 10 other areas of law
  • William received a B.A. degree from Colorado State University in 1978, and has been licensed for 45 years
  • William practices at Norton Rose Fulbright in Denver, CO

Practice Areas Explained

William Joseph Leone's Areas of Practice

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

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William Joseph Leone is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Colorado →

Class Action

William Joseph Leone is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Colorado →

White Collar Crimes

William Joseph Leone is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in Colorado →

Securities Law

William Joseph Leone is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Colorado →

Civil Litigation

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

William Joseph Leone is one of 454,532 litigation attorneys indexed nationally. Browse litigation 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 William Joseph Leone

Where is William Joseph Leone's law office located?
William Joseph Leone's law practice is located in Denver, Colorado. The firm is Norton Rose Fulbright. You can contact the office directly through this profile page.
What practice areas does William Joseph Leone handle?
William Joseph Leone focuses on business, class action, white collar, securities, litigation. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has William Joseph Leone practiced law?
William Joseph Leone has 45+ years of legal experience and has been licensed since 1981.
Where did William Joseph Leone go to law school?
William Joseph Leone earned their education at (J.D., 1981); (B.A., 1978).
How can I contact William Joseph Leone for a consultation?
You can contact William Joseph Leone 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 Joseph Leone received?
William Joseph Leone's notable recognition includes: AV Preeminent.

Education

J.D.
University of Colorado
- 1981
B.A.
Colorado State University
- 1978

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1981
U.S. District Court, District of Colorado
Admitted: 1982
U.S. District Court, District of Wyoming, U.S. Court of Appeals, Tenth Circuit and U.S. District Cou
Admitted: 1982
U.S. District Court, District of Delaware
Admitted: 1989
U.S. District Court, District of Minnesota
Admitted: 1991
U.S. Supreme Court
Admitted: 1996
New York
Admitted: 2014

Reviews

4.9
13 Review
5 0
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3 0
2 0
1 0
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