Gregg H. Hilzer, Pashman Stein Walder Hayden P.C. Photo

Gregg H. Hilzer

Co-Chair, Cannabis & Hemp Law


Gregg H. Hilzer is a partner at Pashman Stein Walder Hayden who focuses his practice on cannabis law, white-collar criminal investigations, complex litigation and regulatory matters.

Gregg is co-chair of Pashman Stein’s Cannabis & Hemp Law practice group. Recognized on the InsiderNJ “Insider 100: Cannabis Power List” in 2022 and 2021 as an influential voice in the cannabis debate, Gregg has experience advising existing medical marijuana operators and representing applicants poised to enter various aspects of the medical marijuana industry. In both the medical marijuana and hemp spaces, he provides multifaceted legal guidance to business entities and individuals focused on managing risk and ensuring compliance with regulatory requirements. 

Gregg’s experience also includes complex litigation matters on behalf of financial institutions, multinational corporations, public entities, small businesses, and individuals. A highly skilled litigator, he has successfully represented a wide range of clients in the state and federal courts of New Jersey and New York. He also has substantial experience representing clients before various regulators, including the New Jersey Department of Banking and Insurance, New Jersey Board of Medical Examiners, and New Jersey Office of Attorney Ethics. His white-collar experience includes defending matters involving allegations of bank, tax and healthcare fraud; commercial bribery; and violations of the False Claim Act. He is also regularly called upon to evaluate his client’s policies and procedures to ensure regulatory compliance and effective risk management.

Along with Pashman Stein partner Raymond M. Brown, Gregg was a member of the legal team that successfully defended U.S. Senator Robert Menendez in Federal District Court against unfounded allegations of public corruption and bribery brought by the federal government. The trial ended in November 2017 with a hung jury and subsequent mistrial.  Shortly thereafter, the Department of Justice dismissed all remaining charges against Senator Menendez.

While in private practice, Gregg also earned his LL.M. in Banking, Corporate & Finance Law, where he was ranked first in his class with a concentration in government investigations and securities regulation.

Upon his graduation from law school, Gregg served as law clerk to The Honorable David B. Rand in the Morris County Superior Court.

In Gregg's Words:

"I could not have chosen a more exciting time to join Pashman Stein Walder Hayden and serve as Co-Chair of the Cannabis and Hemp Law group.  As New Jersey is on the verge of launching an adult-use cannabis marketplace and stands to increase its national standing overall in the cannabis and hemp industries, Pashman Stein’s ability to be a one-stop shop for clients in these dynamic industries is a tremendous asset.  I am also excited to now be a part of Pashman Stein’s powerhouse litigation practice.  I look forward to working with the outstanding team of exceptional lawyers at Pashman Stein as I continue to represent a wide range of clients in complex commercial litigation, white-collar investigations, and state and federal regulatory matters."


Representative Matters

Our firm is proud of the results it has achieved for clients, some of which are noted here.  Of course, each legal matter is unique on many levels, and past successes are not a guarantee of results in any other pending or future matters.

  • Successfully represented marijuana operator in obtaining local approval to establish satellite medical marijuana dispensary in New Jersey
  • Advising retailers of CBD products on regulatory compliance and advertising requirements
  • Advising medical cannabis cultivator on NJ medical cannabis laws and pending adult-use cannabis legislation
  • Advising existing recreational and medical cannabis dispensaries and cultivators on NJ medical cannabis laws and pending adult-use cannabis legislation
  • Advising provider of cultivation products and cultivation consulting services on NJ medical cannabis laws and pending adult-use cannabis legislation
  • Advising existing cannabis testing laboratory in connection with the establishment of cannabis testing laboratory in New Jersey
  • Negotiated license agreement between extraction company and alternative treatment center


Honors & Recognitions

  • Selected for inclusion in the InsiderNJ, “Insider 100: Cannabis Power List,” 2022 and 2021
  • The Actum Foundation Prize for distinguished work in the area of Banking, Corporate and Finance Law, Fordham University School of Law

The Insider 100: Cannabis Power List is issued by Insider NJ. A description of the selection methodology can be found at

No aspect of this advertisement has been approved by the Supreme Court of New Jersey.

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B.A., Lehigh University, 2000, cum laude

LL.M., Fordham University School of Law, 2013, magna cum laude

J.D., Pennsylvania State University Dickinson School of Law, 2003

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