Peter A. Kuperstein

Ronald Cahill is well-respected for his work with clients of virtually all sizes to solve their most challenging intellectual property problems. His advice ranges from designing protection that maximizes the value of the client’s investment in research and development to applying that IP in court and in the marketplace, which allows clients to realize that value. With decades of courtroom experience, Ron has led trial teams in patent infringement cases around the country. He also conduc...

Marc D. Lazar is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Marc D., who practices law in Boston, Massachusetts, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc D. is held by other top lawyers in the same geographic and legal practice area.

Jennifer L . Chunias is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar and Privacy and Data Security Law. Jennifer L ., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jennifer L . is held by other top lawyers in the same geographic and legal practice area.

Douglas J. Kline is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law. Douglas J., who practices law in Boston, Massachusetts, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Douglas J. is held by other top lawyers in the same geographic and legal practice area.

Chris has a wide-ranging practice, which has included everything from sophisticated estate planning to multi billion dollar mergers and acquisitions. His primary experience has been in representing family or employee owned businesses and their shareholders in all aspects of federal income, gift and estate taxation. Chris also has substantial experience in the taxation of mutual funds and private investment vehicles.

Jeffrey M. Rosin is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Jeffrey M., who practices law in Boston, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey M. is held by other top lawyers in the same geographic and legal practice area.

Timothy M. McCrystal is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Timothy M., who practices law in Boston, Massachusetts, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy M. is held by other top lawyers in the same geographic and legal practice area.

Lou, Co-Chair of the firm's Lateral Partner Hiring Committee and former member of Sullivan's Management Committee, represents clients, both public and private, in commercial acquisitions, dispositions and financings across various real estate asset classes, including office, retail, senior living, hospitality and marinas, many of which are multi-state, portfolio transactions. His practice includes a particular focus on representation of real estate investment trusts (REITs). The transactions ...

Leo V. Boyle is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Leo V., who practices law in Boston, Massachusetts, has been recognized since 1987. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leo V. is held by other top lawyers in the same geographic and legal practice area.

Robert I. Feinberg has the highest personal injury verdict in Massachusetts over a five year period and he has the highest personal injury settlement in Massachusetts in the last year. In a landmark victory, a Massachusetts Superior Court jury awarded Mr. Feinberg’s client $7.7 million including interest as a result of a boiler explosion, the highest injury verdict in Massachusetts over a five year period, excluding medical malpractice. The victory for the industrial worker was achieved...