Gregory J. Irwin

Gregory J. Irwin: Attorney with Harwood Lloyd, LLC
Attorney Awards


Gregory J. Irwin is a partner in Harwood Lloyd’s General Litigation and Insurance Litigation Departments. Mr. Irwin’s primary areas of practice are personal injury, products liability, professional negligence, and construction litigation. He has also represented lawyers in a variety of ethics and disciplinary proceedings.

Mr. Irwin received his B.A. from Miami University (Ohio) in 1976. He received his J.D. from Seton Hall Law School in 1979. He has been a trial attorney for over thirty years, in both New Jersey and New York courts, and is certified by the Supreme Court of New Jersey as a certified civil trial attorney.

Mr. Irwin served as law clerk to Hon. Leonard D. Ronco, Judge, Superior Court of New Jersey, Law Division, Essex County for the 1979-1980 term.

Mr. Irwin was an Assistant Prosecutor in Bergen County from 1980-1982, at which time he joined Harwood Lloyd. He is a former member of the District Ethics Committee for Bergen County.

Mr. Irwin is admitted to practice before the courts of the State of New Jersey (1979), the United States District Court for the District of New Jersey (1979), the courts of the State of New York (1981), the United States Court of Appeals for Third Circuit (1996), the United States District Court for the Eastern District of New York (2003), and the United States District Court for the Southern District of New York (2003).

Mr. Irwin is a member of the New Jersey State Bar Association, the Bergen County Bar Association, the Hudson County Bar Association, the New York State Bar Association, the American Trial Lawyers Association, Trial Lawyers of New Jersey, and the American Arbitration Association.

Mr. Irwin has been named by New Jersey Super Lawyers magazine as one of the top attorneys in New Jersey for 2019. The selections for this list are made by the research team at Super Lawyers, which is a service of the Thomson Reuters, Legal division based in Egan, MN. Each year, the research team at Super Lawyers undertakes a multi-phase selection process that includes a statewide survey of lawyers, independent evaluation of candidates by the attorney-led research staff, a peer review of candidates by practice area, and a good-standing and disciplinary check. The decisions made by Super Lawyers have not been approved by the New Jersey Supreme Court.

Mr. Irwin is designated by the New Jersey Supreme Court as a Certified Civil Trial Attorney. Certified Civil Trial Attorneys have demonstrated levels of experience, education, knowledge and skill in civil trial practice as recognized by other attorneys and judges familiar with their work. To attain and maintain this designation involved a written examination and ongoing continuing legal education requirements in civil trial law. Less than 2% of New Jersey attorneys are certified by the New Jersey Supreme Court.

Judicial Clerkships

Hon. Leonard D. Ronco, J.S.C., 1979-1980

Areas of Practice (8)

  • Appellate Law
  • General Liability
  • Insurance Law
  • Litigation
  • Products Liability
  • Professional Liability
  • Construction Litigation
  • Cannabis Law

Education & Credentials

Contact Information:
(201) 359-3630  Phone
(201) 487-2443  Fax
University Attended:
Miami University, Ohio
Law School Attended:
Seton Hall Law School, J.D., 1979
Year of First Admission:
1979, New Jersey; 1979, United.States District Court, District of New Jersey; 1981, New York; 1996, United States Court of Appeals, Third Circuit; 2003, United States District Court, Eastern District of New York; 2003, United States District Court, Southern District of New York



•Certified by the N.J. Supreme Court of New Jersey as a Civil Trial Attorney
•New Jersey State Bar Association
•New York State Bar Association
•Bergen County Bar Association
•Hudson County Bar Association
•New Jersey Association for Justice
•Trial Attorneys of New Jersey
•American Arbitration Association
•Former Member of District Ethics Committee for Bergen County
•Assistant Prosecutor, Bergen County Prosecutor's Office, 1980-1982


Peer Reviews

A Martindale-Hubbell Peer Rating reflects a combination of achieving a Very High General Ethical Standards rating and a Legal Ability numerical rating.

*Peer Reviews provided before April 15, 2008 are not displayed.



Hackensack, New Jersey

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