Boston, Massachusetts · Est. Counsel
Trusted Counsel for
What Matters Most
For over four decades, delivering sage, strategic guidance with the highest ethical standards — protecting legacies and preserving wealth with quiet excellence.
About the Firm
A legacy of
quiet excellence.
Founded in Boston, Simonds, Willis, Winslow & Abbott represents the highest standard in legal counsel. Our attorneys bring decades of combined expertise in tax law, estate planning, and trust administration.
Led by Marc A. Elfman, whose peer-reviewed reputation for exceptional client care and the highest ethical standards sets the benchmark for our entire firm, we approach every matter with unwavering integrity.
"Highest capability; excellent manner with clients; highest ethical standards."
What We Do
Practice Areas
Tax Law
Strategic tax counsel for individuals and businesses navigating complex federal and state tax matters.
Estate Planning
Comprehensive estate plans that protect your legacy and provide peace of mind for generations.
Trust Administration
Expert guidance through every phase of trust creation, management, and distribution.
Small Business Law
Trusted legal partnership for entrepreneurs building and scaling their ventures.
Tax Planning
Proactive strategies to minimize tax exposure and maximize wealth preservation.
Accounting Law
Specialized counsel at the intersection of law and accounting for optimal compliance.
Peer Reviews
What colleagues say.
"I have worked closely with Marc on a number of complex and novel matters and I rely wholeheartedly on his sage counsel. Marc brings years of expertise and knowledge to the table each time I work with him."
"Highest capability; excellent interaction with clients; highest ethical standards."
"I've known attorney Elfman for close to 40 years and have always found him to follow the highest ethical standards. He is extremely knowledgeable about tax law and is very responsive to both clients and other attorneys."
"Highest capability; excellent manner with clients; highest ethical standards."
Your legacy deserves
the best counsel.
Schedule a confidential consultation. Discover why Boston's most discerning clients trust Simonds, Willis, Winslow & Abbott.
Book Your ConsultationGet in Touch
Contact us.
Ready to discuss your legal needs? Reach out for a confidential conversation with our experienced team.