Jeffrey J. Greenbaum, Chair of the Sills Cummis & Gross Class Action Practice Group, is an active litigator and trial attorney in the Federal and State Courts with a specialty in complex business litigation and in defending class action litigation. He has handled cases of national prominence, chaired the ABA Section of Litigation Class Actions and Derivative Suits Committee and is a frequent lecturer in the class action field. He has handled numerous matters involving securities, RICO and consumer fraud, class actions and derivative suits, professional liability, antitrust, banking, chancery practice, contracts, real estate, trade secrets and unfair competition.
Jeffrey J. Greenbaum
Awarded Practice Areas
Bet-the-Company Litigation Commercial Litigation Litigation - Banking and Finance Litigation - Mergers and Acquisitions Litigation - Real Estate Litigation - Securities Mass Tort Litigation / Class Actions - Defendants
Awarded Practice Areas
Bet-the-Company Litigation Commercial Litigation Litigation - Banking and Finance Litigation - Mergers and Acquisitions Litigation - Real Estate Litigation - Securities Mass Tort Litigation / Class Actions - Defendants
Biography
Locations
Education
- The University of Michigan Law School, J.D.
- University of Pennsylvania, B.S.
Bar Admissions
Client Testimonials
Awards & Focus

Named "Lawyer of the Year" by Best Lawyers® for:
- Litigation - Securities, Newark (2024)
- Litigation - Securities, Newark (2022)
- Litigation - Real Estate, Newark (2020)
- Litigation - Securities, Newark (2019)
- Litigation - Securities, Newark (2016)
- Litigation - Real Estate, Newark (2015)
- Litigation - Banking and Finance, Newark (2013)
Recognized in The Best Lawyers in America® 2026 for work in:
- Bet-the-Company Litigation
- Commercial Litigation
- Litigation - Banking and Finance
- Litigation - Mergers and Acquisitions
- Litigation - Real Estate
- Litigation - Securities
- Mass Tort Litigation / Class Actions - Defendants
Additional Areas of Practice:
- Mass Tort Litigation
Special Focus:
- Banking
- Business Disputes
- Class Actions
- Complex Litigation
- Pharmaceutical
- Securities
- Stockholders' Suits
News & Media
Publications
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