David P. Halstead Ph. Dr.

Sean Boulger is the vice chair of the Real Estate Practice Group. He joined the firm in 1992. Practice Mr. Boulger's practice covers a wide range of real estate transactions and development projects. He represents numerous investors, developers and operators in joint ventures, acquisitions, developments, leases and financing transactions across a broad spectrum of real estate asset classes. Areas of expertise include the following: Senior Housing Mr. Boulger has extensive experience in the se...

Leslie P. King is a lawyer recognized by Best Lawyers in the practice areas of Construction Law and Litigation - Construction. Leslie P. practices law in Boston, Massachusetts Best Lawyers has recognized Leslie P. King since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Leslie P. King is held by other lawyers.

David Resnick is the team leader of the Patent group and he works with startup and established companies, as well as major U.S. research institutions, to develop comprehensive patent strategies to protect their intellectual property. What do you focus on? My practice is focused on strategic portfolio management, patent prosecution, transactional matters and associated client counseling. I manage the patent portfolios of some of the leading U.S. research institutions and domestic and internati...

Sean M. O'Brien is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Sean M. practices law in Boston, Massachusetts Best Lawyers has recognized Sean M. O'Brien since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Sean M. O'Brien is held by other lawyers.

William D. Collins is a lawyer recognized by Best Lawyers in the practice areas of Biotechnology and Life Sciences Practice and Corporate Law. William D. practices law in Boston, Massachusetts Best Lawyers has recognized William D. Collins since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which William D. Collins is held by other lawyers.

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...

Guy W. McPherson is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Guy W. practices law in Boston, Massachusetts Best Lawyers has recognized Guy W. McPherson since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Guy W. McPherson is held by other lawyers.

Dan Bailey has more than 25 years of experience in environmental, land use, real estate, and municipal law. He prides himself on offering pragmatic solutions to complicated legal matters. While Dan’s “sweet spot” is the redevelopment of commercial property, he has a strong background in all aspects of environmental and regulatory law. Dan also handles all types of real estate transactions. Dan has helped facilitate development of a wide range of commercial real estate projec...

Mark Seltzer represents corporations, executives and professionals in government investigations and enforcement actions and related complex litigation. What do you focus on? In recent years, I have focused my practice on representing pharmaceutical companies and their executives, medical device manufacturers and their executives, clinical diagnostics manufacturers and other health care providers in government health care fraud investigations and related civil litigation under the federal Fals...

Amy Charamba represents financial institutions who provide fiduciary and agency services to the capital markets. She advises clients on all types of financial products, from debt finance to CLO, and other structured finance transactions, start to finish—from origination, amendment, and refinancings to default, dispute resolution, and litigation. What do you focus on? I leverage over 25 years of experience representing leading financial institutions, serving as corporate trustees, custod...