Dan Yanofsky is a litigator in the firm’s Boston office.  Dan represents plaintiffs and defendants in all phases of litigation and enforcement proceedings, from pre-suit strategic development through trial and appeal.  His practice focuses on commercial disputes, corporate-governance and transactional litigation, and securities matters.

Prior to joining the firm, Dan served as a law clerk to Judge Raymond W. Gruender, U.S. Court of Appeals for the 8th Circuit.  Before clerking, Dan worked as an assistant attorney general at the Administrative Law Division of the Massachusetts Attorney General’s Office.  In that capacity, Dan represented state agencies and argued cases in the Massachusetts Appeals Court and Superior Court.


  • Served as trial counsel for leading private equity firm in commercial litigation, obtaining favorable verdict rejecting breach of contract claims.
  • Represented manufacturer and its officers and directors in successfully resolving numerous state and federal securities actions, including prevailing on a novel interlocutory appeal.
  • Defended multiple securities fraud class actions brought against pharmaceutical companies.
  • Represented leading private equity firm in COVID-related broken deal litigation in Delaware Chancery Court.
  • Represented homeowners association in high-profile real estate dispute brought by individuals seeking to prevent the residents from building a causeway to provide access to their properties; secured complete dismissal of all claims in two Land Court actions, a Superior Court action, and numerous regulatory challenges.
  • Representing the plaintiffs in the New York federal class action Dorce v. City of New York challenging the constitutionality of New York City’s property seizures under its Third Party Transfer program.
  • Defended independent directors of public company in state and federal shareholder derivative actions alleging breaches of fiduciary duties related to the public company’s internalization of its asset manager.
  • Represented director and officer of national agricultural producer in complex derivative action involving asserted breaches of fiduciary duties.
  • Represented 24 Hour Fitness Worldwide Inc. and its debtor-affiliates in their chapter 11 cases involving approximately $1.4 billion of funded debt.
  • Represented medical device company in connection with a criminal and civil investigation by the Department of Justice regarding alleged violations of the Anti-Kickback Statute.

Areas of Practice