Atty. Will E. Leonard

Atty. Will E. Leonard

Will E. Leonard is a lawyer practicing international trade, customs law, government relations and 2 other areas of law.

Washington Washington 68 Years Experience 68 year
Call (771) 717-3546

Profile Summary

About Will E. Leonard at a glance

Will E. Leonard is a Partner based in Washington, District of Columbia, practicing at Adduci, Mastriani & Schaumberg, L.L.P.. They have 68+ years of legal experience, licensed to practice since 1958. Their practice focuses on ip, government, and international. Admitted to practice in Louisiana (1958) and District of Columbia U.S. Court of International Trade U.S. Court of Appeals for the Federal Circuit (1963). Educated at Harvard University LL.M. Tulane University LL.B. (—) and Tulane University B.A. (—). Recognitions include AV Preeminent. Active member of Memberships •District of Columbia Bar •Louisiana State Bar Association •American Bar Association (Former Chairman, Standing Committee on Customs Law. Serves clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Will E. Leonard is a lawyer practicing international trade, customs law, government relations and 2 other areas of law
  • Will E. received a B.A. degree from Tulane University, and has been licensed for 68 years
  • Will E. practices at Adduci, Mastriani & Schaumberg, L.L.P. in Washington, DC

Practice Areas Explained

Will E. Leonard's Areas of Practice

Each practice area below reflects the types of cases Will E. Leonard handles, with a brief overview of what that area of law covers.

Intellectual Property

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

Will E. Leonard is one of 94,505 ip attorneys indexed nationally. Browse ip attorneys in District of Columbia →

Government & Administrative Law

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

Will E. Leonard is one of 118,414 government attorneys indexed nationally. Browse government attorneys in District of Columbia →

International Law

International law attorneys for cross-border transactions, trade, foreign investment, and treaties.

Will E. Leonard is one of 36,155 international attorneys indexed nationally. Browse international 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 venue, 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 Will E. Leonard

Where is Will E. Leonard's law office located?
Will E. Leonard's law practice is located in Washington, District of Columbia. The firm is Adduci, Mastriani & Schaumberg, L.L.P.. You can contact the office directly through this profile page.
What practice areas does Will E. Leonard handle?
Will E. Leonard focuses on ip, government, international. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has Will E. Leonard practiced law?
Will E. Leonard has 68+ years of legal experience and has been licensed since 1958.
Where did Will E. Leonard go to law school?
Will E. Leonard earned their education at (—); (—).
How can I contact Will E. Leonard for a consultation?
You can contact Will E. Leonard 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 Will E. Leonard received?
Will E. Leonard's notable recognition includes: AV Preeminent.

Education

Harvard University LL.M. Tulane University LL.B.
- In Progress
Tulane University B.A.
- In Progress

Awards

AV Preeminent

Bar Admissions

Louisiana
Admitted: 1958
District of Columbia U.S. Court of International Trade U.S. Court of Appeals for the Federal Circuit
Admitted: 1963

Reviews

5.0
1 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.