Atty. Walter A. Lesnevich

Atty. Walter A. Lesnevich

Walter A. Lesnevich currently serves as Of Counsel in the personal injury law department of O’Cathain Law Group.

Hackensack Hackensack 54 yrs experience 54 year
Call (917) 997-1038 Book Appointment

Profile Summary

About Walter A. Lesnevich at a glance

Walter A. Lesnevich is an Of Counsel based in Hackensack, New Jersey, practicing at O'Cathain Law Group. They have 54+ years of legal experience, licensed to practice since 1972. Their practice focuses on car accidents, medical malpractice, wrongful death, personal injury, and criminal defense. Admitted to practice in New Jersey (1972), U.S. District Court, District of New Jersey (1972), New York (1977), and U.S. District Court, Eastern, Southern and Northern Districts of New York (1977). Educated at Rutgers University Law School (J.D., 1972) and Rutgers University (B.A. Psychology, 1963). Recognitions include AV Preeminent. Serands clients in Hackensack, NJ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Walter A. Lesnevich currently serves as Of Counsel in the personal injury law department of O’Cathain Law Group
  • Walt has been litigating cases for over fifty years in both State and Federal Courts in New Jersey and New York
  • He began his legal career as an Assistant US Attorney for the District of New Jersey in the Special Prosecutions Unit, investigating and prosecuting political corruption before entering the private sector
  • He formed his own firm, using his expansive litigation experience and knowledge to expand his practice to include criminal defense, medical malpractice, and personal injury matters
  • Walt grew the firm from his solo practice to partnering with his wife and eventually becoming Lesnevich, Marzano-Lesnevich, O’Cathain & O’Cathain, LLC. Walt served his profession as a former Trustee of the New Jersey State Bar Association and is currently certified by the Supreme Court of New Jersey as a Certified Civil Trial Attorney
  • In recognition of his vast trial experience, he is a Diplomate of the American Board of Trial Advocates and has been designated a Super Lawyer every year since its inception
  • Walt enjoys achieving justice for his clients
  • On a personal level, Walt loves travel, fine dining, talking baseball, watching baseball, and rooting every year for the Mets!
  • He loves spending time with his five children, their spouses/partners, and their eleven grandchildren
  • EXPERIENCE • Managing Partner, Lesnevich Marzano-Lesnevich O’Cathain & O’Cathain, LLC • Assistant U.S
  • Attorney for the District of New Jersey

Practice Areas Explained

Walter A. Lesnevich's Areas of Practice

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

Car Accidents

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

Walter A. Lesnevich is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in New Jersey →

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Walter A. Lesnevich is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in New Jersey →

Wrongful Death

Walter A. Lesnevich is one of 31,253 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in New Jersey →

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.

Walter A. Lesnevich is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in New Jersey →

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.

Walter A. Lesnevich is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in New Jersey →

Jurisdictional Context

Why local counsel matters in New Jersey

Practicing law in New Jersey. Legal matters in New Jersey are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Hackensack are typically filed in the local municipal court or the appropriate New Jersey state district court, depending on subject matter and amount in controversy. An attorney licensed in New Jersey 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 Jersey courts without local counsel or pro hac vice admission.

Looking for additional New Jersey attorneys? Browse all attorneys in Hackensack or all attorneys in New Jersey.

Frequently Asked

Common questions about Walter A. Lesnevich

Where is Walter A. Lesnevich's law office located?
Walter A. Lesnevich's law practice is located in Hackensack, New Jersey. The firm is O'Cathain Law Group. You can contact the office directly through this profile page.
What practice areas does Walter A. Lesnevich handle?
Walter A. Lesnevich focuses on car accidents, medical malpractice, wrongful death, personal injury, criminal defense. Each practice area listed reflects experience handling cases of that type in New Jersey.
How long has Walter A. Lesnevich practiced law?
Walter A. Lesnevich has 54+ years of legal experience and has been licensed since 1972.
Where did Walter A. Lesnevich go to law school?
Walter A. Lesnevich earned their education at (J.D., 1972); (B.A. Psychology, 1963).
How can I contact Walter A. Lesnevich for a consultation?
You can contact Walter A. Lesnevich 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.
What awards or recognition has Walter A. Lesnevich received?
Walter A. Lesnevich's notable recognition includes: AV Preeminent.

Education

J.D.
Rutgers University Law School
- 1972
B.A. Psychology
Rutgers University
- 1963

Awards

AV Preeminent

Bar Admissions

New Jersey
Admitted: 1972
U.S. District Court, District of New Jersey
Admitted: 1972
New York
Admitted: 1977
U.S. District Court, Eastern, Southern and Northern Districts of New York
Admitted: 1977
U.S. Court of Appeals, Third Circuit
Admitted: 1981

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