Donald G. Tye

David J. Zimmer is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. David J., who practices law in Cambridge, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David J. is held by other top lawyers in the same geographic and legal practice area.

Julia R. Hesse is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Julia R., who practices law in Boston, Massachusetts, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julia R. is held by other top lawyers in the same geographic and legal practice area.

Susan L. Barrett is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Susan L., who practices law in Boston, Massachusetts, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susan L. is held by other top lawyers in the same geographic and legal practice area.

Heather Krauss is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Heather, who practices law in Boston, Massachusetts, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Heather is held by other top lawyers in the same geographic and legal practice area.

John G. DiPiano is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Arbitration. John G., who practices law in Salem, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John G. is held by other top lawyers in the same geographic and legal practice area.

Michael Goldberg’s clients look to him for advice on difficult and complex restructuring issues, where he is known for his creative approaches to the solution of financial problems. Mike specializes in the areas of business bankruptcy, financial restructuring and business transactions as well as commercial real estate transactions. In his over 25 years of practice, Mike has represented a broad spectrum of clients in insolvency matters, including debtors, creditors’ committees, tru...

Heather V. Baer is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Criminal Defense: White-Collar and Litigation - Trusts and Estates. Heather V., who practices law in Boston, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Heather V. is held by other top lawyers in the same geographic and legal practice area.

Armand is a partner in the M&A/Private Equity Practice Group. He serves as lead counsel to large- and mid-market buyout funds and to public and privately-owned companies in a variety of complex transactions, including leveraged acquisitions, mergers, divestitures, joint ventures, corporate restructurings, equity financings and workouts. Armand has broad experience counseling clients in a variety of industries, including healthcare, consumer, financial services, business and information se...

Rich is the leader of Sullivan’s Tax Group. He concentrates on state tax and local tax (SALT) litigation and transactional planning involving corporate, personal income and sales/use tax matters. He has more than two decades of experience before the Massachusetts Appellate Tax Board, the Supreme Judicial Court, various state Departments of Revenue and the Internal Revenue Service on a range of issues, including corporate nexus, domicile, apportionment, step transaction, and unitary repo...

Michael J. Summersgill is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Michael J., who practices law in Boston, Massachusetts, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael J. is held by other top lawyers in the same geographic and legal practice area.