Atty. Thomas A. Leghorn

Atty. Thomas A. Leghorn

With more than four decades of experience in defending professional liability and intellectual property claims, Tom Leghorn has established himself as one of New York's most esteemed and highly rated trial lawyers. He concentrates his practice on defending lawyers, insurance producers, securities broker-dealers, and other professionals from professional liability and professional ethics claims.

New York New York 44 yrs experience 44 year
Call (212) 331-9555 Email Book Appointment

Profile Summary

About Thomas A. Leghorn at a glance

Thomas A. Leghorn is a Partner Emeritus based in New York, New York, practicing at London Fischer LLP. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on insurance and internet. Admitted to practice in New York U.S. District Court, Eastern District of New York U.S. District Court, Southern District of (1982). Educated at St. John's University School of Law (J.D. St., 1981) and New York University (B.A., 1977). Active member of American Bar Association New York State Bar Association. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • With more than four decades of experience in defending professional liability and intellectual property claims, Tom Leghorn has established himself as one of New York's most esteemed and highly rated trial lawyers
  • He concentrates his practice on defending lawyers, insurance producers, securities broker-dealers, and other professionals from professional liability and professional ethics claims
  • He also handles complex commercial litigation and intellectual property/technology litigation, defending cases in both State and Federal courts across the United States
  • In recent years, Tom began applying his expertise in defending intellectual property claims to defending and guiding clients in response to data security breaches
  • With the current epidemic of cybercrime, he also assists clients with establishing procedures to prevent repeat claims and mitigate future exposures
  • Before joining London Fischer LLP, Tom was a partner at a large national insurance coverage and defense firm where he served as Co-Chair of the Lawyers Liability Team and a member of the Operations Group and Executive Committee
  • Prior to that, he was a law clerk in the U.S
  • District Court, Eastern District, in New York
  • Tom holds both a J.D. from St. John’s School of Law and an LLM from the New York University School of Law
  • Because of his knowledge, experience, and strong professional ethics, Tom has been selected by his peers to be a member of Super Lawyers every year since 2007
  • When he's not in the courtroom or assisting clients in defeating cybercriminals, Tom can often be found on the golf course, perfecting his swing, or enjoying a quiet evening at home engrossed in a captivating book
  • In fact, Tom has shared his love of reading with his community both as Cofounder of the Huguenot Children’s Library and President of the New Rochelle Public Library
  • He also has served as a Boy Scout leader and Little League Coach and is actively involved in his church ministry
  • Memberships • American Bar Association • New York State Bar Association • Professional Liability Underwriting Society News & Insights February 20, 2018 Lawyer’s Liability Team obtains appellate decision and dismissal for lawyer clients in the same week
  • April 10, 2017 Professional liability defense grows with group lead by Tom Leghorn and Ernie Tonorezos February 20, 2018 Lawyer’s Liability Team obtains appellate decision and dismissal for lawyer clients in the same week
  • February 20, 2018 Lawyer’s Liability Team obtains appellate decision and dismissal for lawyer clients in the same week
  • April 10, 2017 Professional liability defense grows with group lead by Tom Leghorn and Ernie Tonorezos

Practice Areas Explained

Thomas A. Leghorn's Areas of Practice

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

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

Thomas A. Leghorn is one of 121,912 insurance attorneys indexed nationally. Browse insurance attorneys in New York →

Internet & Cyber Law

Internet and cyber lawyers for data breaches, online defamation, privacy law, and cybersecurity matters.

Thomas A. Leghorn is one of 17,958 internet attorneys indexed nationally. Browse internet 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 andnue, 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 Thomas A. Leghorn

Where is Thomas A. Leghorn's law office located?
Thomas A. Leghorn's law practice is located in New York, New York. The firm is London Fischer LLP. You can contact the office directly through this profile page.
What practice areas does Thomas A. Leghorn handle?
Thomas A. Leghorn focuses on insurance, internet. Each practice area listed reflects experience handling cases of that type in New York.
How long has Thomas A. Leghorn practiced law?
Thomas A. Leghorn has 44+ years of legal experience and has been licensed since 1982.
Where did Thomas A. Leghorn go to law school?
Thomas A. Leghorn earned their education at (J.D. St., 1981); (B.A., 1977).
How can I contact Thomas A. Leghorn for a consultation?
You can contact Thomas A. Leghorn 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.

Education

J.D. St.
St. John's University School of Law
- 1981
B.A.
New York University
- 1977

Bar Admissions

New York U.S. District Court, Eastern District of New York U.S. District Court, Southern District of
Admitted: 1982

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