Providing strategic legal counsel and personalized attention to U.S. and international businesses and individuals ranging from start-ups and emerging growth entities to established, private and public companies.

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Our lawyers represent clients throughout the region, the nation and the globe.

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“This well-respected Providence firm acts for clients predominantly based in Rhode Island and Massachusetts, but also provides advice extending to national and cross-border clients.” — Chambers USA: America’s Leading Lawyers For Business
“Their counsel has been part and parcel of the success of myself and my company. They have breadth and depth of knowledge in the marketplace.”
“The firm has seen a surge of work in the technology sector, with companies focusing on complex IP matters, and also in the alternative energy and life sciences spheres.” — Chambers USA: America’s Leading Lawyers For Business
Best Law Firms ranked Duffy & Sweeney in Tier One in the categories of Corporate Law and for Litigation sub-specialties including IP, Mergers & Acquisitions, Trusts & Estate, and Securities.
“World-class litigators who led their legal team in a successful action against a Fortune 1000 company” and “extremely capable in dealing with complex technical issues…”
“It is comforting to know that we have a team working to help us through the various issues we face.  Everyone we have interacted with at your firm has been great to work with, providing confidence and support and really setting the tone that they are there to help protect RIMI’s (our) interests.” — Wayne Arruda, Rhode Island Medical Imaging