Atty. Robert Lee Mahon III

Atty. Robert Lee Mahon III

Robert Lee Mahon III is a lawyer practicing tax, business, environmental and natural resources. Robert received a B.A. degree from Grinnell College in 1992, and has been licensed for 30 years.

Seattle Seattle 30 yrs experience 30 year
Call (206) 703-0398 Book Appointment

Profile Summary

About Robert Lee Mahon III at a glance

Robert Lee Mahon III is a Partner based in Seattle, Washington, practicing at Perkins Coie LLP. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on business, tax, and environmental. Admitted to practice in Washington (1996). Educated at University of Iowa College of Law (J.D., 1995) and Grinnell College (B.A., 1992). Recognitions include Peer Reviewed. Serands clients in Seattle, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Robert Lee Mahon III is a lawyer practicing tax, business, environmental and natural resources
  • Robert received a B.A. degree from Grinnell College in 1992, and has been licensed for 30 years
  • Robert practices at Perkins Coie LLP in Seattle, WA

Practice Areas Explained

Robert Lee Mahon III's Areas of Practice

Each practice area below reflects the types of cases Robert Lee Mahon III 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.

Robert Lee Mahon III is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Washington →

Tax Law

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

Robert Lee Mahon III is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Washington →

Environmental Law

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

Robert Lee Mahon III is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

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

Looking for additional Washington attorneys? Browse all attorneys in Seattle or all attorneys in Washington.

Frequently Asked

Common questions about Robert Lee Mahon III

Where is Robert Lee Mahon III's law office located?
Robert Lee Mahon III's law practice is located in Seattle, Washington. The firm is Perkins Coie LLP. You can contact the office directly through this profile page.
What practice areas does Robert Lee Mahon III handle?
Robert Lee Mahon III focuses on business, tax, environmental. Each practice area listed reflects experience handling cases of that type in Washington.
How long has Robert Lee Mahon III practiced law?
Robert Lee Mahon III has 30+ years of legal experience and has been licensed since 1996.
Where did Robert Lee Mahon III go to law school?
Robert Lee Mahon III earned their education at (J.D., 1995); (B.A., 1992).
How can I contact Robert Lee Mahon III for a consultation?
You can contact Robert Lee Mahon III 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 Robert Lee Mahon III received?
Robert Lee Mahon III's notable recognition includes: Peer Reviewed.

Education

J.D.
University of Iowa College of Law
- 1995
B.A.
Grinnell College
- 1992

Awards

Peer Reviewed

Bar Admissions

Washington
Admitted: 1996

Reviews

5.0
4 Review
5 0
4 0
3 0
2 0
1 0
These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.