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Aaron D. Rosengarten
Aaron D. Rosengarten





J.D., Magna Cum Laude, Widener University School of Law, 2020

B.A., Summa Cum Laude, Political Science, West Chester University of Pennsylvania, 2017


Aaron joined Hawke McKeon & Sniscak LLP as an Associate in September 2022. Aaron represents clients in various energy sectors including petroleum, natural gas, water and wastewater, and electricity.

Aaron also represents clients in the cannabis industry and assists with litigation and appeals before state courts and administrative agencies.

Prior to joining HMS Legal, Aaron served as a judicial law clerk to President Judge Renée Cohn Jubelirer of the Commonwealth Court where he assisted in the drafting of opinions on complex administrative issues.  Aaron has served as a judicial law clerk to a trial judge assisting with the drafting of opinions in complex civil and criminal issues and gaining valuable experience at the trial court level. Aaron has interned for two federal magistrate judges, a private criminal defense firm in Virginia, a private business firm in Harrisburg, and as a certified legal intern with the Dauphin County District Attorney’s Office while in law school. Additionally, Aaron was a member of his law school’s Moot Court Honor Society and Law Review.

Representative Matters

  • Represents clients in state trial and appellate courts
  • Represents clients before administrative agencies
  • Represents cannabis clients in challenging Pa. DOH Regulations in an original jurisdiction proceeding in the Commonwealth Court

Professional Affiliations

  • Pennsylvania Bar Association
  • Dauphin County Bar Association
  • James S. Bowman Inn of Court, Associate Group Leader

Honors and Distinctions

  • Widener Commonwealth Law Review, Vice President of Internal Competition
  • Widener Commonwealth Law Review, Business/External Managing Editor
  • Outstanding Service Award, 2020
  • All USA Community College Academic Team Scholarship, 2015 (1 out of 20 students in the United States)



  • American Association of Safety Professionals, Northeast Pennsylvania Chapter Professional Development Conference, March 21, 2023 (Panelist – “Marijuana in the Workplace”).

Government Service

  • Judicial Law Clerk to President Judge Renée Cohn Jubelirer, Commonwealth Court, 2021-2022
  • Judicial Law Clerk to the Hon. Craig A. Dally, Northampton County Court of Common Pleas, 2020-2021
  • Certified Legal Intern, Dauphin County District Attorney’s Office, 2019

Judicial Internships

  • Intern to the Honorable Martin C. Carlson, United States District Court for the Middle District of Pennsylvania, 2019
  • Intern to the Honorable Joseph F. Saporito, Jr., United States District Court for the Middle District of Pennsylvania, 2020

Bar and Court Admissions