Sean P. O'Neill

Michael A. Leon is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Michael A., who practices law in Boston, Massachusetts, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael A. is held by other top lawyers in the same geographic and legal practice area.

Stacey Pietrowicz is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Stacey, 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 Stacey is held by other top lawyers in the same geographic and legal practice area.

Karla Chaffee focuses her practice on land use permitting and real estate due diligence. She helps her clients maximize efficiency by charting a coordinated permitting strategy through a deal’s lifecycle. My focus Land Use Permitting I provide guidance to clients seeking zoning approvals and other development entitlements. I lay the groundwork for successful projects by working with clients, planning staff, and elected and appointed officials to navigate local, state, and federal permit...

Laura's practice involves federal and state civil (commercial) litigation and arbitrations throughout the United States, with an emphasis on complex regulatory and fiduciary issues. She has extensive experience in disputes involving shareholder and investor rights and relationships; application of the business judgment rule; and fiduciary disclosures, compliance and enforcement issues (often in a securities law setting). A significant component of her practice consists of counseling clients o...

Lindsay V. Mason is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Lindsay V., 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 Lindsay V. is held by other top lawyers in the same geographic and legal practice area.

CiCi is a compassionate advisor and tenacious litigator with nearly 30 years of experience. CiCi’s practice is dedicated to all aspects of family law matters, including divorce, separation, custody, parenting plans, child support, alimony, asset division, pre- and post-nuptial agreements, parental relocation, paternity, modification, probate litigation, restraining orders and grandparents’ rights. She represents individuals, including professional athletes and celebrities, involve...

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

Of his 20 years practicing law, Ben Zimmermann has spent 20 at Sugarman & Sugarman P.C. in Boston. After finishing his studies at Fordham University School of Law, he got his start in the corporate litigation group of a large New York City firm. His path quickly changed and took him to SUGARMAN, where he has emerged as a leading trial lawyer in New England, and the managing partner of a firm with a sixty year history of excellence in litigating and trying serious personal injury cases. Ra...

Catherine J. Hinton is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Catherine J., who practices law in Lexington, Massachusetts, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Catherine J. is held by other top lawyers in the same geographic and legal practice area.

Jane E. Remillard is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Jane E., who practices law in Boston, Massachusetts, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jane E. is held by other top lawyers in the same geographic and legal practice area.