Dennis Duffy has practiced interior design for over 30 years. With his undergraduate degree from University of Miami and certificate in interior design from Parsons School of Design, he took a position in Cenzo, Inc., a residential design firm in New York City. A few years later, he opened his first office in New York. He continued working in the residential arena both there and in San Juan, where he also completed projects in the retail sector.

In 1996, Dennis moved to Boston and continued his practice in both residential and commercial design. His commercial experience include a boutique hotel, restaurants, retail and several multi-family residential projects.

He was a member of IIDA before coming to Florida, where he has joined ASID. He is NCIDQ certified and registered in Florida as an Interior Designer.

Dennis served on the New England chapter board of IIDA as Director of Education for two years.