Atty. John Lawrence Leifert

Atty. John Lawrence Leifert

For over two decades, John has been litigating cases in Federal, state and municipal courts throughout New York and New Jersey. During that time, John has handled a diverse array of matters, including negligence cases, the defense of hospitals and physicians, and a broad range of health care disputes.

White Plains White Plains 30 yrs experience 30 year
Call (914) 533-4130 Book Appointment

Profile Summary

About John Lawrence Leifert at a glance

John Lawrence Leifert is an Associate based in White Plains, New York, practicing at Denlea & Carton LLP. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on personal injury, litigation, health care, and insurance. Admitted to practice in New Jersey (1996), New York United States District Court, District of New Jersey United States District Court, Eastern (1997), and Connecticut (2019). Educated at University at Buffalo, School of Law (J.D., 1996) and University at Albany, School of Business (B.S., 1993). Serands clients in White Plains, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • For over two decades, John has been litigating cases in Federal, state and municipal courts throughout New York and New Jersey
  • During that time, John has handled a diverse array of matters, including negligence cases, the defense of hospitals and physicians, and a broad range of health care disputes
  • After growing up on Long Island, John opted for a ski jacket and gloves, choosing to live in Upstate New York for the next seven years as he attended college in Albany and law school in Buffalo
  • While awaiting admission to practice law, John assisted a Special Prosecutor in Niagara County to obtain a guilty verdict in a high-profile murder trial, thereby cementing his passion for litigation and the courtroom
  • John then returned to the New York metropolitan area, where he has remained ever since
  • John is a seasoned, versatile litigator comfortable representing both plaintiffs and defendants
  • On the plaintiffs’ side, he helped obtain numerous verdicts and settlements including a multi-million-dollar award for the victim of an ATV accident
  • On the defense side, he has helped to secure numerous dismissals, including an award of summary judgment for a large hospital accused of psychiatric malpractice resulting in a patient’s severe facial disfigurement, and the loss of an eye
  • John lives in Mamaroneck with his wife (a school teacher in Rye Neck), and their two children

Practice Areas Explained

John Lawrence Leifert's Areas of Practice

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

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

John Lawrence Leifert is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in New York →

Civil Litigation

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

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

Health Care Law

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

John Lawrence Leifert is one of 66,735 health care attorneys indexed nationally. Browse health care attorneys in New York →

Insurance Law

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

John Lawrence Leifert is one of 121,912 insurance attorneys indexed nationally. Browse insurance 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 Lawrence Leifert

Where is John Lawrence Leifert's law office located?
John Lawrence Leifert's law practice is located in White Plains, New York. The firm is Denlea & Carton LLP. You can contact the office directly through this profile page.
What practice areas does John Lawrence Leifert handle?
John Lawrence Leifert focuses on personal injury, litigation, health care, insurance. Each practice area listed reflects experience handling cases of that type in New York.
How long has John Lawrence Leifert practiced law?
John Lawrence Leifert has 30+ years of legal experience and has been licensed since 1996.
Where did John Lawrence Leifert go to law school?
John Lawrence Leifert earned their education at (J.D., 1996); (B.S., 1993).
How can I contact John Lawrence Leifert for a consultation?
You can contact John Lawrence Leifert 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.
University at Buffalo, School of Law
- 1996
B.S.
University at Albany, School of Business
- 1993

Bar Admissions

New Jersey
Admitted: 1996
New York United States District Court, District of New Jersey United States District Court, Eastern
Admitted: 1997
Connecticut
Admitted: 2019

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