Sheehan Phinney Welcomes O’Neill to Boston Office

(Boston, MA, June 17, 2025) – Sheehan Phinney welcomes attorney Sandra F. O’Neill to its Boston office as a Shareholder.

O’Neill is a member of the firm’s Corporate Group and an accomplished tax lawyer, who advises on matters pertaining to federal income tax in corporate mergers, acquisitions, joint ventures and planning initiatives, including the structuring of cross-border and IP buy-in transactions. She also provides counsel with regard to partnership and REIT tax issues in the formation of real estate investment funds.

In addition to her private practice, O’Neill has served as in-house counsel, tax adviser and consultant to healthcare and industrial manufacturing interests, among others. Prior to entering into law, she worked in the leveraged finance group of a prominent investment bank.

O’Neill received her J.D., cum laude, from Harvard Law School and her B.A. in Economics, magna cum laude, from Harvard College.

About the Firm

Sheehan Phinney is a preeminent law firm where 80+ years of trusted experience meets innovative forward-thinking and creative solutions in all areas of business law. Founded in 1937, Sheehan Phinney has grown to over 70 attorneys with five offices throughout New Hampshire, Massachusetts and Vermont, and is known for professional excellence, practical counsel and commitment to both its clients and the communities it serves. Sheehan Phinney is the exclusive member in New Hampshire of Lex Mundi, the world’s leading association of premier independent law firms.