Atty. Chris S. Leason

Atty. Chris S. Leason

For nearly 30 years, Chris has focused his practice on high-profile civil and criminal environmental investigations and enforcement actions throughout the United States. A nationally-recognized Resource Conservation and Recovery Act (RCRA) practitioner, Chris represents national trade associations, oil and gas companies, manufacturers, and mine operators on issues involving the identification and management of solid and hazardous wastes, financial assurance, corrective action, permitting, boiler and industrial furnace compliance, underground storage tank testing and removal, and land disposal

Phoenix Phoenix 32 yrs experience 32 year
Call (602) 530-8000 Book Appointment

Profile Summary

About Chris S. Leason at a glance

Chris S. Leason is a litigation, environmental, and government attorney based in Phoenix, Arizona, practicing at Gallagher & Kennedy PA. They have 32+ years of legal experience, licensed to practice since 1994. Admitted to practice in District of Columbia, The District of Columbia Bar (1994), Arizona, State Bar of Arizona (2002), and Idaho, Idaho State Bar (2022). Educated at The George Washington University (J.D., 1993). Recognitions include Best Lawyers in America — Administrative / Regulatory Law (2026), Best Lawyers in America — Environmental Law (2026), and Best Lawyers in America — Litigation - Environmental (2026). Serands clients in Phoenix, AZ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • For nearly 30 years, Chris has focused his practice on high-profile civil and criminal environmental investigations and enforcement actions throughout the United States
  • A nationally-recognized Resource Conservation and Recovery Act (RCRA) practitioner, Chris represents national trade associations, oil and gas companies, manufacturers, and mine operators on issues involving the identification and management of solid and hazardous wastes, financial assurance, corrective action, permitting, boiler and industrial furnace compliance, underground storage tank testing and removal, and land disposal restriction requirements

Practice Areas Explained

Chris S. Leason's Areas of Practice

Each practice area below reflects the types of cases Chris S. Leason 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.

Chris S. Leason is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Arizona →

Environmental Law

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

Chris S. Leason is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Arizona →

Government & Administrative Law

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

Chris S. Leason is one of 132,225 government attorneys indexed nationally. Browse government attorneys in Arizona →

Jurisdictional Context

Why local counsel matters in Arizona

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

Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.

Frequently Asked

Common questions about Chris S. Leason

Where is Chris S. Leason's law office located?
Chris S. Leason's law practice is located in Phoenix, Arizona. The firm is Gallagher & Kennedy PA. You can contact the office directly through this profile page.
What practice areas does Chris S. Leason handle?
Chris S. Leason focuses on litigation, environmental, government. Each practice area listed reflects experience handling cases of that type in Arizona.
How long has Chris S. Leason practiced law?
Chris S. Leason has 32+ years of legal experience and has been licensed since 1994.
Where did Chris S. Leason go to law school?
Chris S. Leason earned their education at (J.D., 1993).
How can I contact Chris S. Leason for a consultation?
You can contact Chris S. Leason 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 Chris S. Leason received?
Chris S. Leason's notable recognition includes: Best Lawyers in America — Administrative / Regulatory Law; Best Lawyers in America — Environmental Law; Best Lawyers in America — Litigation - Environmental; Best Lawyers in America — Natural Resources Law.

Education

J.D.
The George Washington University
- 1993

Awards

Best Lawyers in America — Administrative / Regulatory Law
- 2026
Best Lawyers in America — Environmental Law
- 2026
Best Lawyers in America — Litigation - Environmental
- 2026
Best Lawyers in America — Natural Resources Law
- 2026

Bar Admissions

District of Columbia, The District of Columbia Bar
Admitted: 1994
Arizona, State Bar of Arizona
Admitted: 2002
Idaho, Idaho State Bar
Admitted: 2022

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