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Welcome to Green & Massimino LLC, a full service CPA firm with a simple philosophy; save our clients time, money and worry. We pride ourselves as being proactive and responsive to our clients. If you are looking for a CPA firm that will give you a service beyond simple compliance, you are in the right place. We primarily service individuals and businesses in Westford MA, Chelmsford, Littleton, Acton, Carlisle and throughout the Merrimack Valley.