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.
Antitrust & More Attorney · Serving New York, NY · 43+ Years Experience
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.
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About 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
- Daniel practices at Paul, Weiss, Rifkind, Wharton & Garrison LLP in New York, NY
Practice Areas Explained
Daniel Leffell's Areas of Legal Practice
Each practice area below reflects the types of cases Daniel Leffell handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.
Trademark Law in New York
Daniel Leffell is one of 23,086 trademark attorneys indexed nationally. Browse trademark attorneys in New York →
Copyright Law in New York
Daniel Leffell is one of 17,404 copyright attorneys indexed nationally. Browse copyright attorneys in New York →
Intellectual Property in New York
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Daniel Leffell is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in New York →
Mergers & Acquisitions in New York
Daniel Leffell is one of 49,430 m&a attorneys indexed nationally. Browse m&a attorneys in New York →
Civil Litigation in New York
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Daniel Leffell is one of 450,751 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.
New York Courts and Legal Process
Choosing a New York-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
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Professional Profile
Why Clients in New York Choose Daniel Leffell
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Daniel Leffell's practice in the field of trademark, copyright, ip, m&a, and litigation.
Decade-Tested Legal Experience
Daniel Leffell brings 43+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in New York, U.S. District Court, Southern District of New York, and U.S. District Court, Eastern District of New York, Daniel Leffell can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering trademark, copyright, and ip, Daniel Leffell can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in New York
A New York-based practice means Daniel Leffell attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Daniel Leffell Handles in New York
Below is a representative sample of the types of matters Daniel Leffell has experience with under New York law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Daniel Leffell directly to discuss the specifics of your situation.
Search Reference
How People Find Daniel Leffell Online
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Daniel Leffell's Practice Areas & Specializations
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