Philip Mackson is Counsel in Mandelbaum Barrett PC’s Corporate Practice Group, where he advises clients on a broad range of corporate matters, including mergers and acquisitions, private equity transactions, corporate governance, financings, and complex commercial agreements. Philip works closely with management teams and deal counsel on the structuring, negotiation, and execution of middle-market transactions, as well as ongoing corporate matters for closely held and growth-stage companies.

Prior to joining Mandelbaum Barrett PC, Philip was a corporate associate at the Am Law 200 firm Lowenstein Sandler, where he represented public and private companies, investors, and private equity sponsors in a variety of corporate and transactional matters.

A Churning Question – Section 197 and Dental Transactions, New York County Dental Society Quarterly Newsletter, June 2025

New Jersey

  • Boston University School of Law, J.D., cum laude, 2017, Notes Editor, Journal of Science and Technology Law
  • Boston College, B.A., 2011

William Barrett and Philip Mackson Explain How Section 197 Can Impact the Sale or Purchase of a Dental Practice

June 25, 2025

Their article, “A Churning Question – Section 197 and Dental Transactions,” makes a complex topic easier to understand and highlights what dentists should watch out for in deal negotiations.

Winter 2021 Veterinary Newsletter

February 15, 2021

Mandelbaum Barrett PC’s Winter 2021 Veterinary Newsletter brought together legal insights and practice updates specifically tailored to the veterinary community. The newsletter is one part of the firm’s ongoing effort to keep veterinary practice owners, associates, and professionals informed about the legal developments and business trends most relevant to their field. The veterinary industry continued […]

Spring 2020 Veterinary Newsletter

May 29, 2020