David B. Chaffin

Melissa Sampson McMorrow is a top attorney recognized by Best Lawyers in the practice area(s) of Nonprofit / Charities Law and Tax Law. Melissa Sampson, 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 Melissa Sampson is held by other top lawyers in the same geographic and legal practice area.

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...

Chad Dale is a partner in Proskauer’s Corporate Department and a member of both the Business Solutions, Governance, Restructuring & Bankruptcy and Private Credit Restructuring Groups. Chad has 30 years of experience in corporate reorganizations and debt restructurings. As a member of the Private Credit Restructuring Group, Chad’s practice focuses on direct lenders and ad hoc groups of direct lenders, hedge funds and BDC’s. He also represents troubled companies, equity sp...

Dan Rabinovitz co-manages the firm’s Litigation Department. He is a trial lawyer with 30 years of experience and began his career prosecuting violent crime with the Cook County State’s Attorney’s Office in Chicago, Illinois. He has handled a wide variety of civil and criminal matters, representing corporations and individuals and he has tried hundreds of cases, including numerous civil and criminal jury trials in state and federal courts. Currently, his practice focuses on w...

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

Michael J. McGrail is a top attorney recognized by Best Lawyers in the practice area(s) of Venture Capital Law. Michael J., 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 Michael J. is held by other top lawyers in the same geographic and legal practice area.

Patricia C. Lynch is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Patricia C., 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 Patricia C. is held by other top lawyers in the same geographic and legal practice area.

Laura E. Schneider is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Laura E., who practices law in Boston, Massachusetts, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura E. is held by other top lawyers in the same geographic and legal practice area.

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 ...

William P. Rose is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. William 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 William P. is held by other top lawyers in the same geographic and legal practice area.