Cal. Civ. Code § 17
Occupancy constituting tenancy at will; termination
Operative Text
Section 17. For the purposes of this chapter, chapter one hundred and eleven and chapter two hundred and thirty-nine, occupancy of a dwelling unit within premises licensed as a rooming house or lodging house, except for fraternities, sororities and dormitories of educational institutions, for three consecutive months shall constitute a tenancy at will; provided, however, that if the rent for occupancy in such premises is payable either daily or weekly, seven days written notice to the occupant shall be sufficient to terminate the tenancy where the tenant is committing or permitting to exist a nuisance in or is causing substantial damage to the rental unit, or is creating substantial damage to the rental unit, or is creating a substantial interference with the comfort, safety, or enjoyment of the landlord or other occupants of the accommodation; and provided, further, that the notice shall specify the nuisance or interference. Occupancy of a dwelling unit within a rooming house or lodging house, except for fraternities, sororities and dormitories of educational institutions, for more than thirty consecutive days and less than three consecutive months, or within a fraternity, sorority or dormitory of an educational institution for any length of time, may only be terminated by seven days' notice in writing to the occupant by the operator of such dwelling unit.
Under Mass. Gen. Laws c. 186 § 17, a person staying in a licensed rooming house or lodging house (excluding fraternity, sorority, or dormitory settings) for three or more consecutive months is legally treated as a tenant at will, carrying the protections that status entails. For stays lasting more than thirty days but fewer than three months, or for any stay in a fraternity, sorority, or dormitory, the operator must provide at least seven days' written notice before ending the occupancy. An exception allows a shortened seven-day written notice to end a tenancy at will when rent is paid daily or weekly and the occupant is committing a nuisance, causing substantial damage, or substantially interfering with others' comfort or safety—but that notice must specifically describe the nuisance or interference.
Plain English — not legal advice.
Operators of licensed rooming houses and lodging houses subject to Mass. Gen. Laws c. 186 § 17 generally track how long each occupant has been in continuous residence, because the legal character of the occupancy—and the notice requirements that come with it—shifts at the thirty-day and three-month marks. Compliant operators provide written termination notices that meet the statutory minimums: seven days for stays over thirty days but under three months, and the appropriate at-will notice for longer tenancies. When relying on the seven-day nuisance or damage exception for daily or weekly rent arrangements, operators ensure the written notice clearly identifies the specific nuisance or interference, as § 17 requires that specificity for the notice to be valid.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Under Mass. Gen. Laws c. 186 § 17, rooming house and lodging house residents gain meaningful legal protections based on the length of their stay—including tenancy-at-will status after three consecutive months—which limits how and when an operator can end the occupancy. If an operator attempts to terminate a stay without providing the required written notice, or serves a nuisance-based seven-day notice that fails to describe the alleged nuisance or interference, a tenant may be able to raise that deficiency as a defense in any subsequent eviction proceeding under chapter 239. Tenants who believe a notice does not comply with § 17 may benefit from contacting a local tenant-rights organization or legal aid office to understand what options are generally available to them.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated September 13, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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