John V. O'Hanlon

David M. McIntosh is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology and Life Sciences Practice and Litigation - Intellectual Property. David M., 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 David M. is held by other top lawyers in the same geographic and legal practice area.

Ashley leads Sullivan's Real Estate Group and is a member of the firm's Management Committee. Ashley’s practice focuses on all aspects of real estate development, including commercial development, complex debt and equity structures, ground leases, loan workouts and restructures, acquisitions/dispositions, and leasing transactions. Ashley represents a broad spectrum of clients, from international to family office developers, institutional investors to public and private companies, and go...

Eric P. Hayes is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Eric P., 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 Eric P. is held by other top lawyers in the same geographic and legal practice area.

Mary B. Kuusisto is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Private Funds / Hedge Funds Law and Tax Law. Mary B., who practices law in Boston, Massachusetts, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary B. is held by other top lawyers in the same geographic and legal practice area.

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

John T. Bennett is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. John T., 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 John T. is held by other top lawyers in the same geographic and legal practice area.

Jonathan A. ("Jon") Karon is the founder of the Boston firm Karon Law, LLC. He has a national practice representing the catastrophically injured including cases involving traumatic brain injuries, amusement ride accidents, motor vehicle crashes and dangerous products. He is a past President of the Massachusetts Academy of Trial Attorneys and is currently an Officer of the Traumatic Brain Injury Litigation Group of the American Association for Justice (AAJ). His noteworthy cases include succes...

Minta E. Kay is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Minta E., who practices law in Boston, Massachusetts, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Minta E. is held by other top lawyers in the same geographic and legal practice area.

James (Jim) Nicholas focuses his practice on federal and state labor and employment issues and litigation for life sciences, tech, private equity and portfolio companies. He is sought after to handle high-stakes matters relating to employee classification, wage and hour, leaves of absence, discrimination and harassment, wrongful termination and the enforcement of noncompetition and nondisclosure agreements, especially in Massachusetts and California. Read full biography: https://www.mwe.com/p...

Ms. Vanderzanden is a Shareholder in the Boston Office. She has specialized in the area of labor and employment law for nearly 20 years. She devotes her practice to helping employers with employment related disputes, conducting investigations, providing counseling and handling disputes in litigation and arbitration. She has personally conducted dozens of investigations, including investigations involving employee allegations of misconduct by company executives and systemic discrimination. She...