Nathaniel R.B. Koslof

Debra Dyleski-Najjar is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Labor Law - Management. Debra, who practices law in North Andover, Massachusetts, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Debra is held by other top lawyers in the same geographic and legal practice area.

Katie D. Cintolo is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Katie D., 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 Katie D. is held by other top lawyers in the same geographic and legal practice area.

Bruce Francis Smith has over forty years of experience and he represents creditors’ committees, debtors, creditors, executory contract parties, plan of reorganization proponents and asset purchasers in a number of areas including: chapter 11 reorganizations, out-of-court restructurings, debtor-in-possession financing and inter-creditor relationships. Chambers USA ranks Bruce as a leader in the field of restructuring in Massachusetts. Chambers notes that he is “superb counsel in th...

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 ...

Daniel V. McCaughey is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Regulatory Enforcement (SEC, Telecom, Energy). Daniel V., 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 Daniel V. is held by other top lawyers in the same geographic and legal practice area.

Barry S. Pollack is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Barry S., 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 Barry S. is held by other top lawyers in the same geographic and legal practice area.

During his career, Mr. Davis has served as class counsel on numerous nationwide employment class actions and has tried nearly 20 cases to verdict. Mr. Davis has been recognized by the press as an experienced trial attorney and employment law expert. He is regularly interviewed by print and television media outlets around the world, including The Associated Press, The Shriver Report, and CNN En Español. Mr. Davis began his career as an Assistant District Attorney in the esteemed Manhatt...

John Egan, a partner and co-chair of the firm’s Technology practice, focuses on corporate securities, venture capital, growth equity and technology enterprises. Mr. Egan's practice involves early and late-stage venture financings, growth equity and leveraged recapitalizations, IPOs, mergers and acquisitions, joint ventures, strategic licensing and the general representation of public and private emerging growth companies. Mr. Egan works with clients in industries ranging from enterprise...

Courtney B. Winter is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Courtney B., who practices law in Wellesley, Massachusetts, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Courtney B. is held by other top lawyers in the same geographic and legal practice area.

Eric Apjohn is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Eric, 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 Eric is held by other top lawyers in the same geographic and legal practice area.