James P. "Jay" Carrigan

Attorney Jamie Sultan has 40 years of experience fighting for clients facing serious criminal charges in both state and federal courts. His practice includes fending off charges against clients under investigation, defending clients who have been charged, and prosecuting appeals and post-trial motions on behalf of clients following conviction. He has appeared in trial and appellate courts throughout Massachusetts and in seven other states. Jamie has handled a number of high-profile cases. Som...

James T. Mattus is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. James T., 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 James T. 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.

Damon M. Seligson is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Damon M., 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 Damon M. is held by other top lawyers in the same geographic and legal practice area.

Sarah is a member of Sullivan’s REITs Practice Group. She advises public and private REITs, both domestic and foreign, in various industries, including: data centers, office buildings, commercial retail space, distributed antenna systems, timberlands and agricultural properties. She focuses on structuring and compliance work, including cross-border transactions. Sarah also has experience involving federal and state tax litigation and transactional planning involving corporate, franchise...

Kenneth R. Berman is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Kenneth 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 Kenneth R. is held by other top lawyers in the same geographic and legal practice area.

Mark E. Schreiber focuses his practice on cybersecurity, data breach response and global privacy coordination. He advises entities facing cross-border data protection, the General Data Protection Regulation (GDPR), Privacy Shield and related issues, strategic decisions, cyber assessments and investigations. Mark has led numerous multi-national and cross-border matters, including those involving data breaches, data transfer and credit card/PCI matters. He has advised senior management, boards,...

David C. Fixler’s practice focuses on assisting energy companies with navigating the complex regulatory landscape that, together with sweeping technological changes, is changing the manner in which electricity is generated, distributed, sold, managed, stored, and consumed in the United States. David has wide-ranging experience representing developers of renewable and traditional energy facilities in permitting, siting, interconnection, zoning, property tax and other matters in front of ...

John Butts is Chair of the Firm’s Commercial Litigation Group. He has prevailed in trials and arbitrations across the country for a wide range of clients in high stakes commercial disputes. John represents clients in a broad range of matters, including complex contract disputes, business torts, trade secrets cases, consumer matters, and class actions. His work has spanned a number of industries, including the automotive industry, financial services, real estate, and biotechnology.

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...