Michael P. "Mike" Thornton

Ronaldo Rauseo-Ricupero is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Ronaldo, 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 Ronaldo is held by other top lawyers in the same geographic and legal practice area.

Andrew Kaplan’s contributions to the energy industry have been nationally recognized. A leader in energy law and policy, he was a major architect of the current energy storage industry and an advocate for many of the regulations and rules that created today’s energy marketplace. With over 25 years of experience from multiple perspectives, Andrew’s reputation as a trusted advisor and advocate has earned him credibility before federal and state regulators. As a former Chief of...

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

Jennifer concentrates her real estate development practice on complex, large-scale developments in and around the Greater Boston Area, with focus areas in life sciences development, renewable energy and ClimaTech real estate assets, and multi-family housing. Jenn represents traditional real estate developers as well as family offices, real estate investment trusts, REIMs, universities/colleges, hospitals, hotel owners and managers, and land-centric nonprofits. My focus Real Estate Development...

Andrew L. Eisenberg is a partner in the Boston office of Constangy. His practice encompasses all aspects of labor law, labor relations and employment law. Mr. Eisenberg has extensive experience assisting the firm's clients in responding to union organizing campaigns, negotiating and advising clients with respect to the administration of collective bargaining agreements and representing clients in grievance and arbitration proceedings. He also assists clients with respect to the full range of ...

James A. Bello is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. James A., 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 James A. is held by other top lawyers in the same geographic and legal practice area.

A co-leader of the firm's Mergers & Acquisitions Practice, Mary-Laura Greely has extensive experience as a transactional lawyer in mergers and acquisitions involving private and public companies, private equity, venture capital, and general corporate representation. She advises companies on strategic acquisitions and dispositions of companies, assets and divisions, significant debt and equity financings, management buy-outs, corporate governance and succession planning, employment, intell...

Daniel V. Ward is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Daniel V., who practices law in Boston, Massachusetts, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel V. 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,...