Here is some Massachusetts residency information taken from the website of the state of Massachusetts. Here is the text from that portion:
There is no formal procedure for establishing a legal residence in Massachusetts. Voter registration, automobile registration, a driver’s license, the appearance of a person’s name on a city or town street list, and rent, utility, mortgage or telephone bills normally provide tangible proof of residence. However, individual public or private agencies or institutions may have their own requirements for proof of residence. To be eligible for the resident tuition rate at a public institution of higher learning, the applicant must be able to demonstrate that s/he is a resident and intends to remain permanently or for an indefinite time. For state universities and state colleges, the length of residency is twelve months; for community colleges, it is six months. It is important to check with the institution as several factors are taken into consideration in determining residency.
To learn more click here and see the entire website regarding Citizens Information Service.