Atty. John C. Lenahan

Atty. John C. Lenahan

John C. Lenahan is a lawyer practicing litigation, intellectual property, employment law and 2 other areas of law.

Washington Washington 60 yrs experience 60 year
Call (202) 367-9055 Book Appointment

Profile Summary

About John C. Lenahan at a glance

John C. Lenahan is a employment, ip, product liability, litigation, and aviation attorney based in Washington, District of Columbia. They have 60+ years of legal experience, licensed to practice since 1966. Admitted to practice in New York (1966), District of Columbia (1971), and Virginia (1971). Educated at St. John's University (LL.B., 1966) and Niagara University (B.A., 1962). Recognitions include AV Preeminent. Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John C. Lenahan is a lawyer practicing litigation, intellectual property, employment law and 2 other areas of law
  • John C. received a B.A. degree from Niagara University in 1962, and has been licensed for 60 years
  • John C. practices in Washington, DC

Practice Areas Explained

John C. Lenahan's Areas of Practice

Each practice area below reflects the types of cases John C. Lenahan 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.

John C. Lenahan is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in District of Columbia →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

John C. Lenahan is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Product Liability

John C. Lenahan is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in District of Columbia →

Civil Litigation

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

John C. Lenahan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in District of Columbia →

Aviation Law

Aviation attorneys for aircraft accidents, FAA regulation, pilot defense, and aviation industry matters.

John C. Lenahan is one of 9,225 aviation attorneys indexed nationally. Browse aviation attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about John C. Lenahan

Where is John C. Lenahan's law office located?
John C. Lenahan's law practice is located in Washington, District of Columbia. You can contact the office directly through this profile page.
What practice areas does John C. Lenahan handle?
John C. Lenahan focuses on employment, ip, product liability, litigation, aviation. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John C. Lenahan practiced law?
John C. Lenahan has 60+ years of legal experience and has been licensed since 1966.
Where did John C. Lenahan go to law school?
John C. Lenahan earned their education at (LL.B., 1966); (B.A., 1962).
How can I contact John C. Lenahan for a consultation?
You can contact John C. Lenahan 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 John C. Lenahan received?
John C. Lenahan's notable recognition includes: AV Preeminent.

Education

LL.B.
St. John's University
- 1966
B.A.
Niagara University
- 1962

Awards

AV Preeminent

Bar Admissions

New York
Admitted: 1966
District of Columbia
Admitted: 1971
Virginia
Admitted: 1971

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