Atty. J. Andrew Nathan

Atty. J. Andrew Nathan

J. Andrew Nathan has had the privilege of arguing or litigating cases in most courts in the State of Colorado including the 10th Circuit Court of Appeals, the Colorado Supreme Court, the Colorado Court of Appeals, the United States District Court and numerous state District Courts.

Denver Denver 54 yrs experience 54 year
Call (720) 362-2031 Book Appointment

Profile Summary

About J. Andrew Nathan at a glance

J. Andrew Nathan is a Partner based in Denver, Colorado, practicing at Nathan Dumm & Mayer, P.C.. They have 54+ years of legal experience, licensed to practice since 1972. Their practice focuses on employment, zoning, slip & fall, litigation, and civil rights. Admitted to practice in Colorado (1972). Educated at University of Colorado at Boulder (J.D., 1972) and University of Missouri (B.A., 1969). Recognitions include AV Preeminent. Active member of Denver, Arapahoe County and Colorado Bar Associations Colorado Defense Lawyers Association American Board of Trial Advocates. Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • J. Andrew Nathan has had the privilege of arguing or litigating cases in most courts in the State of Colorado including the 10th Circuit Court of Appeals, the Colorado Supreme Court, the Colorado Court of Appeals, the United States District Court and numerous state District Courts
  • Perhaps his crowning moment in law, other than his daughter, Marni, joining the Firm he started, was his oral argument in front of the United States Supreme Court on a First Amendment issue which resulted in a 9-0 decision in favor of Mr. Nathan's client
  • City of Littleton v
  • Z. J. Gifts, 541 U.S. 774 (2004)
  • Mr. Nathan received his law education at the University of Colorado Law School, graduating in 1972
  • He has devoted the entirety of his legal practice to the defense of civil litigation and the representation of employers, cities, towns, special districts, counties and government employees and elected officials
  • Although a substantial portion of his practice is devoted to employment law, civil rights related matters, land use issues and tort litigation, he has handled a panoply of cases and represented a variety of entities
  • Mr. Nathan has lectured extensively before governmental and insurance groups regarding contemporary litigation issues
  • He has taught trial and appellate law, civil rights and employment seminars on a frequent basis and he has written articles for the Colorado Lawyer
  • He is a past president of the Colorado Chapter of the American Board of Trial Advocates and was a member of its National Board of Directors
  • He is also a past officer of the Colorado Defense Lawyers Association
  • He is AV Preeminent rated through Martindale with a 5.0 out of 5.0 rating and has been selected as a Super Lawyer 6 times
  • Additional published decisions of note: Town of Dillon v
  • Yacht Club Condominiums Home Owners Association, 325 P.3d 1032 (Colo. 2014)
  • Wilson v
  • City of Lafayette, 510 Fed
  • Appx. 775 (10th Cir. 2013)
  • 211 Eighth, LLC v
  • Town of Carbondale, 922 F.Supp.2d 1174 (D
  • Colo. 2013)
  • Furlong Enterprises, LLC v
  • Nickerson, 785 F.Supp.2d 970 (D
  • Colo. 2011)
  • City of Commerce City v
  • Enclave West, Inc., 185 P.3d 174 (Colo. 2008)
  • Darr v
  • Town of Telluride, 495 F.3d 1243 (10th Cir. 2007)
  • Mann v
  • Boatright, 477 F.3d 1140 (10th Cir. 2007)
  • Full Moon Saloon, Inv. v
  • City of Loveland, 111 P.3d 568 (Colo
  • App. 2005)
  • Jiron v
  • City of Lakewood, 392 F.3d 410 (10th Cir. 2004)
  • Rohrbough v
  • Stone, 189 F. Supp. 2d 1144 (D
  • Colo. 2002)
  • Tattered Cover, Inc. v
  • City of Thornton, 44 P.3d 1044 (Colo. 2002)
  • Crider v
  • Board of County Com'rs of County of Boulder, 246 F.3d 1285 (10th Cir. 2001)
  • Smith v
  • Town of Snowmass Village, 919 P.2d 868 (Colo
  • App. 1996)
  • DiPaolo v
  • Boulder Valley Sch
  • Dist., 902 P.2d 439 (Colo
  • App. 1995)
  • Leahy v
  • Guaranty Nat
  • Ins
  • Co., 907 P.2d 697 (Colo
  • App. 1995)
  • Cherry Creek Sch
  • Dist. #5 v
  • Voelker, 859 P.2d 805 (Colo. 1993)
  • Martinez v
  • Industrial Commission, 632 P.2d 1044 (Colo
  • App. 1981)
  • Thomas v
  • Guaranty Nat
  • Ins
  • Co., 597 P.2d 1053 (Colo
  • App. 1979)
  • Howard Associates, Inc. v
  • Home Indem
  • Co., 528 P.2d 980 (Colo
  • App. 1974)

Practice Areas Explained

J. Andrew Nathan's Areas of Practice

Each practice area below reflects the types of cases J. Andrew Nathan handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

J. Andrew Nathan is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Colorado →

Land Use & Zoning

J. Andrew Nathan is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in Colorado →

Slip & Fall / Premises Liability

J. Andrew Nathan is one of 29,473 slip & fall attorneys indexed nationally. Browse slip & fall attorneys in Colorado →

Civil Litigation

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

J. Andrew Nathan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Colorado →

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

J. Andrew Nathan is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights 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 J. Andrew Nathan

Where is J. Andrew Nathan's law office located?
J. Andrew Nathan's law practice is located in Denver, Colorado. The firm is Nathan Dumm & Mayer, P.C.. You can contact the office directly through this profile page.
What practice areas does J. Andrew Nathan handle?
J. Andrew Nathan focuses on employment, zoning, slip & fall, litigation, civil rights. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has J. Andrew Nathan practiced law?
J. Andrew Nathan has 54+ years of legal experience and has been licensed since 1972.
Where did J. Andrew Nathan go to law school?
J. Andrew Nathan earned their education at (J.D., 1972); (B.A., 1969).
How can I contact J. Andrew Nathan for a consultation?
You can contact J. Andrew Nathan 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 J. Andrew Nathan received?
J. Andrew Nathan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Colorado at Boulder
- 1972
B.A.
University of Missouri
- 1969

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1972

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