David S. Rosenzweig

Nancy T. Hegarty is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Nancy T., who practices law in Boston, Massachusetts, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nancy T. is held by other top lawyers in the same geographic and legal practice area.

Tannaz Saponaro is a highly recognized family law attorney specializing in sophisticated divorce matters with complex financial family estates, child custody, alongside ancillary probate and business disputes. She was born in Tehran, Iran before moving to Los Angeles, California with her family at a young age. She attended California State University in Northridge and of L’Universite Pour Les Etudiants Etranges in Aix En Provence, France before obtaining her J.D. from Suffolk University...

Michael Mankes is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Michael, who practices law in Boston, Massachusetts, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael is held by other top lawyers in the same geographic and legal practice area.

Matthew Giles is a partner in the firm’s Business Law Department. He is a member of the firm’s Private Investment Funds group, Real Estate Industry group, and Capital Markets practice. Mr. Giles’ practice includes real estate and private equity fund formation, domestic and international securities offerings, partnership and limited liability company law and mergers and acquisitions, with a focus on REITs and real estate capital markets. His corporate practice also includes s...

Erik J. Winton is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Erik J., who practices law in Boston, Massachusetts, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erik J. is held by other top lawyers in the same geographic and legal practice area.

Dan practiced at the firm between 1987 and 2005, before leaving to become General Counsel at GSI Group, a NASDAQ traded company with a highly diversified portfolio of laser, precision positioning, specialty optics and laser-based system products. He rejoined the firm in 2011 and manages the Litigation Practice. During his career, Dan has tried numerous cases throughout the country in both state and federal courts. His practice includes commercial business disputes involving mergers and acquis...

Ronald Eisenstein focuses his practice on advising biotechnology and pharmaceutical companies, research institutes, and universities on patent portfolio management, post-issuance strategies, dispute management and due diligence. He is also a member of the firm’s Life Sciences team. My focus I focus my practice on helping clients devise and execute strategies for managing their patent portfolios as well as navigate the changing patent landscape. I leverage my scientific background, exten...

Evelyn Moreno focuses her practice on sophisticated gift and estate tax planning and she advises personal representatives of estates and trustees of trusts. She serves as trustee of several trusts for clients and works collaboratively with other firm personnel in the trust, tax and investment groups to provide tax planning and investment advice. She counsels nonprofit organizations with respect to tax and governance matters, and she has extensive experience in the reformation and termination ...

Mark Seltzer represents corporations, executives and professionals in government investigations and enforcement actions and related complex litigation. What do you focus on? In recent years, I have focused my practice on representing pharmaceutical companies and their executives, medical device manufacturers and their executives, clinical diagnostics manufacturers and other health care providers in government health care fraud investigations and related civil litigation under the federal Fals...

Richard Zielinski, who practices in Boston and New York, is a nationally known ‘bet the company’ trial lawyer who handles a wide range of complex, high-stakes commercial litigation. He is also known for his specific expertise in legal malpractice defense. According to Chambers USA, Richard is ‘very smart, thorough and knowledgeable. ’ Clients say he is ‘fantastic on his feet’ and ‘thinks seven steps ahead of everyone else.’ He has extensive tria...