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Atty. Gregory John Lyons

Atty. Gregory John Lyons

Gregory John Lyons is a lawyer practicing corporate & incorporation, business, securities & investment fraud and 3 other areas of law. Gregory received a B.A. degree from Wesleyan University in 1987, and has been licensed for 36 years.

New York New York 36 J. Erfahrung 36 year
Call (646) 797-2069 Book Appointment

Profile Summary

About Gregory John Lyons at a glance

Gregory John Lyons is a Partner based in New York, New York, practforg at Debevoise & Plimpton LLP. They haand 36+ years of legal experience, licensed to practice since 1990. Admitted to practice in Connecticut (1990), Massachusetts (1993), and New York (2009). Educated at Boston University (J.D., 1990) and Wesleyan University (B.A., 1987). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Gregory John Lyons is a lawyer practicing corporate & incorporation, business, securities & investment fraud and 3 other areas of law
  • Gregory received a B.A. degree from Wesleyan University in 1987, and has been licensed for 36 years
  • Gregory practices at Debevoise & Plimpton LLP in New York, NY

Jurisdictional Context

Why local counsel matters in New York

Practforg law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand 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 substantiand 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 Gregory John Lyons

Where is Gregory John Lyons's law office located?
Gregory John Lyons's law practice is located in New York, New York. The firm is Debevoise & Plimpton LLP. You can contact the office directly through this profile page.
How long has Gregory John Lyons practiced law?
Gregory John Lyons has 36+ years of legal experience and has been licensed since 1990.
Where did Gregory John Lyons go to law school?
Gregory John Lyons earned their education at (J.D., 1990); (B.A., 1987).
How can I contact Gregory John Lyons for a consultation?
You can contact Gregory John Lyons 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.
Boston University
- 1990
B.A.
Wesleyan University
- 1987

Bar Admissions

Connecticut
Admitted: 1990
Massachusetts
Admitted: 1993
New York
Admitted: 2009

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