News & Events

Marshall Dennehey has been named a "2025 Best Law Firm" in multiple practice areas, both nationally and across numerous regions of the country, by Best Lawyers®. Nationally, the firm ranked in the practice areas of Mass Tort Litigation/Class Action – Defendants, Commercial Litigation; Insurance Law; and Litigation- Construction.   

Five attorneys from Marshall Dennehey’s New York City and Long Island offices have been selected to the 2024 edition of New York Metro Super Lawyers magazine. A Thomson Reuters business, Super Lawyers is a rating service of lawyers from more than 70 practice areas who have attained a high degree of peer recognition and professional achievement.

Marshall Dennehey is proud to highlight the firm’s 109 attorneys who have been recognized in the 2025 editions of The Best Lawyers in America® and the Best Lawyers: Ones to Watch® in America. Less than 6% of all practicing lawyers in the U.S. were selected by their peers for this recognition.

Additionally, five of the firm’s attorneys received the Best Lawyers® 2025 “Lawyer of the Year” awards in their respective practice areas and demographic regions. 

Veteran litigator Matthew K. Flanagan has joined Marshall Dennehey as a Shareholder and Co-Chair of the firm’s Disciplinary Board Representation Practice Group, joining Josh J.T. Byrne in leading the practice. He will divide his time between the firm’s Long Island (Melville) and New York City offices. Previously, he was a Partner at Catalano Gallardo & Petropoulos, LLP in Jericho, NY.  

Marshall Dennehey was named the first place winner in the extra-large company category at the Philadelphia Business Journal’s Best Places to Work Awards, held July 25 at Rivers Casino in Philadelphia. The firm has been recognized among the Philadelphia region’s Best Places to Work every year since 2013 and this is the firm’s fourth time winning their company-size category.

Keith M. Andresen has returned to Marshall Dennehey’s New York City office as a shareholder in the Casualty Department, where he joins Peter S. Read to co-chair the firm’s New York Construction & Labor Law Practice Group.