Matthew C. "Matt" Berntsen

Eric W. Macaux is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Eric W., 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 Eric W. is held by other top lawyers in the same geographic and legal practice area.

John DeTore serves as Administrative Chairman of Rubin and Rudman’s Executive Committee and leader of the Energy Practice Group. John’s practice focuses on representing large energy companies before regulatory agencies and courts throughout New England and in New York. His representations include more than twenty major energy projects involving billions of dollars in Massachusetts, Connecticut and New York, including eleven cases before the Massachusetts Supreme Judicial Court. Jo...

Jonathan M. Sachs is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jonathan M., 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 Jonathan M. is held by other top lawyers in the same geographic and legal practice area.

Jon M. Herzog is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Leveraged Buyouts and Private Equity Law. Jon M., 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 Jon M. is held by other top lawyers in the same geographic and legal practice area.

Warren is a Partner in the Real Estate Department. Although his practice encompasses the entire range of commercial real estate law, he concentrates in the area of leasing.

Robert Asher leads the post-grant proceedings team at Sunstein leveraging his deep experience in patent litigation and patent prosecution. He is an astute and accomplished advocate for inventors and businesses affected by patents. Clients have been richly rewarded from Bob’s litigation guidance, appellate advocacy and patent prosecution work. He is the chair of Sunstein’s PTAB Litigation practice group. Our team won a $14.6M verdict for patent infringement of infrared thermometer ...

Nicholas DiGiovanni is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Nicholas, who practices law in Boston, Massachusetts, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nicholas is held by other top lawyers in the same geographic and legal practice area.

Amy is a member of the firm's management committee and serves as the firm's Deputy General Counsel. She represents borrower and creditor clients in all aspects of distressed transactions, complex bankruptcy proceedings and out-of-court restructurings. Amy’s practice includes a focus in the area of corporate trust, and she has experience representing indenture trustees, agents, collateral trustees, bondholders, lenders and investors in a wide range of complex asset-backed and unsecured f...

Pamela L. Glazier is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Pamela L., who practices law in Boston, Massachusetts, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pamela L. is held by other top lawyers in the same geographic and legal practice area.

Debra Dyleski-Najjar is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Labor Law - Management. Debra, who practices law in North Andover, Massachusetts, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Debra is held by other top lawyers in the same geographic and legal practice area.