Atty. John Gregory Callahan

Atty. John Gregory Callahan

John Gregory Callahan is a lawyer practicing municipal law, criminal law, real estate and 4 other areas of law. John received a B.A. degree from Fordham University in 1971, and has been licensed for 50 years.

White Plains White Plains 50 yrs experience 50 year
Call (914) 561-0123 Book Appointment

Profile Summary

About John Gregory Callahan at a glance

John Gregory Callahan is a criminal defense, real estate, zoning, litigation, and government attorney based in White Plains, New York. They have 50+ years of legal experience, licensed to practice since 1976. Admitted to practice in New York (1976), U.S. District Court, Southern District of New York (1977), and U.S. District Court, Eastern District of New York (1977). Educated at St. John's University at Jamaica (J.D., 1975) and Fordham University (B.A., 1971). Serands clients in White Plains, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Gregory Callahan is a lawyer practicing municipal law, criminal law, real estate and 4 other areas of law
  • John received a B.A. degree from Fordham University in 1971, and has been licensed for 50 years
  • John practices in White Plains, NY

Practice Areas Explained

John Gregory Callahan's Areas of Practice

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

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

John Gregory Callahan is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New York →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

John Gregory Callahan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in New York →

Land Use & Zoning

John Gregory Callahan is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in New York →

Civil Litigation

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

John Gregory Callahan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Government & Administrative Law

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

John Gregory Callahan is one of 132,225 government attorneys indexed nationally. Browse government 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 White Plains 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 White Plains or all attorneys in New York.

Frequently Asked

Common questions about John Gregory Callahan

Where is John Gregory Callahan's law office located?
John Gregory Callahan's law practice is located in White Plains, New York. You can contact the office directly through this profile page.
What practice areas does John Gregory Callahan handle?
John Gregory Callahan focuses on criminal defense, real estate, zoning, litigation, government. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Gregory Callahan practiced law?
John Gregory Callahan has 50+ years of legal experience and has been licensed since 1976.
Where did John Gregory Callahan go to law school?
John Gregory Callahan earned their education at (J.D., 1975); (B.A., 1971).
How can I contact John Gregory Callahan for a consultation?
You can contact John Gregory Callahan 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. John's University at Jamaica
- 1975
B.A.
Fordham University
- 1971

Bar Admissions

New York
Admitted: 1976
U.S. District Court, Southern District of New York
Admitted: 1977
U.S. District Court, Eastern District of New York
Admitted: 1977

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