Atty. Daniel Leffell

Atty. Daniel Leffell

Daniel Leffell is a lawyer practicing appeals, litigation, antitrust and 4 other areas of law. Daniel received a B.A. degree from Yale University in 1977, and has been licensed for 43 years.

New York New York 43 Years Experience 43 year
Call (212) 257-3482

Profile Summary

About Daniel Leffell at a glance

Daniel Leffell is a Partner based in New York, New York, practicing at Paul Weiss Rifkind Wharton And Garrison Llp. They have 43+ years of legal experience, licensed to practice since 1983. Their practice focuses on trademark, copyright, ip, m&a, and litigation. Admitted to practice in New York (1983), U.S. District Court, Southern District of New York (1984), U.S. District Court, Eastern District of New York (1985), and U.S. Court of Appeals, Fourth Circuit (1990). Educated at Columbia University (J.D., 1981) and Yale University (B.A., 1977). Recognitions include AV Preeminent. Serves clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Daniel Leffell is a lawyer practicing appeals, litigation, antitrust and 4 other areas of law
  • Daniel received a B.A. degree from Yale University in 1977, and has been licensed for 43 years
  • Daniel practices at Paul, Weiss, Rifkind, Wharton & Garrison LLP in New York, NY

Practice Areas Explained

Daniel Leffell's Areas of Practice

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

Trademark Law

Daniel Leffell is one of 20,983 trademark attorneys indexed nationally. Browse trademark attorneys in New York →

Copyright Law

Daniel Leffell is one of 15,929 copyright attorneys indexed nationally. Browse copyright attorneys in New York →

Intellectual Property

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

Daniel Leffell is one of 94,505 ip attorneys indexed nationally. Browse ip attorneys in New York →

Mergers & Acquisitions

Daniel Leffell is one of 45,724 m&a attorneys indexed nationally. Browse m&a attorneys in New York →

Civil Litigation

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

Daniel Leffell is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Jurisdictional Context

Why local counsel matters in New York

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

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about Daniel Leffell

Where is Daniel Leffell's law office located?
Daniel Leffell's law practice is located in New York, New York. The firm is Paul Weiss Rifkind Wharton And Garrison Llp. You can contact the office directly through this profile page.
What practice areas does Daniel Leffell handle?
Daniel Leffell focuses on trademark, copyright, ip, m&a, litigation. Each practice area listed reflects experience handling cases of that type in New York.
How long has Daniel Leffell practiced law?
Daniel Leffell has 43+ years of legal experience and has been licensed since 1983.
Where did Daniel Leffell go to law school?
Daniel Leffell earned their education at (J.D., 1981); (B.A., 1977).
How can I contact Daniel Leffell for a consultation?
You can contact Daniel Leffell 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 Daniel Leffell received?
Daniel Leffell's notable recognition includes: AV Preeminent.

Education

J.D.
Columbia University
- 1981
B.A.
Yale University
- 1977

Awards

AV Preeminent

Bar Admissions

New York
Admitted: 1983
U.S. District Court, Southern District of New York
Admitted: 1984
U.S. District Court, Eastern District of New York
Admitted: 1985
U.S. Court of Appeals, Fourth Circuit
Admitted: 1990
U.S. Court of Appeals, Federal Circuit
Admitted: 1997
U.S. Court of Appeals, Third Circuit
Admitted: 1998

Reviews

4.6
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