Michael D. "Mike" MacClary

David J. Zimmer is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. David J., who practices law in Cambridge, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David J. is held by other top lawyers in the same geographic and legal practice area.

Lisa A.H. McChesney is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Lisa A.H., 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 Lisa A.H. is held by other top lawyers in the same geographic and legal practice area.

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

As a real estate and capital markets lawyer with 40 years of experience, my practice focuses on real estate, alternative energy and structured finance, with particular expertise in mezzanine financing. My experience spans a broad range of commercial real estate asset classes located throughout the United States and around the world, including a wide array of projects concerning: complex mortgage financings acquisitions and dispositions joint venture formation and raising capital sale leasebac...

Lou, Co-Chair of the firm's Lateral Partner Hiring Committee and former member of Sullivan's Management Committee, represents clients, both public and private, in commercial acquisitions, dispositions and financings across various real estate asset classes, including office, retail, senior living, hospitality and marinas, many of which are multi-state, portfolio transactions. His practice includes a particular focus on representation of real estate investment trusts (REITs). The transactions ...

David J. Powers is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. David J., 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 David J. is held by other top lawyers in the same geographic and legal practice area.

Joseph P. Davis III is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Bankruptcy. Joseph P., 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 Joseph P. is held by other top lawyers in the same geographic and legal practice area.

Seth P. Berman is a top attorney recognized by Best Lawyers in the practice area(s) of Privacy and Data Security Law. Seth P., who practices law in Boston, Massachusetts, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Seth P. is held by other top lawyers in the same geographic and legal practice area.

Cheryl A. Clarkin is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Cheryl A., who practices law in Boston, Massachusetts, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cheryl A. is held by other top lawyers in the same geographic and legal practice area.

Graham Robinson focuses his practice on mergers, acquisitions and other transactions in the pharmaceutical, medical device and technology industries in the U.S. and internationally. He also regularly represents both private equity funds and hedge funds on a wide range of matters. Mr. Robinson’s health care clients have included, among others, Alnara Pharmaceuticals, Alpharma Pharmaceuticals, Bayer, Dendreon Corporation, PerkinElmer Inc., Prism Pharmaceuticals, Savient Pharmaceuticals, T...