Maine Tenancy-at-Will Termination (Tit. 14 § 6002)

Me. Rev. Stat. tit. 14 § 6002 provides that "tenancies at will must be terminated by either party by a minimum of 30 days' notice... in writing for that purpose given to the other party," except in the cases covered by the 7-day provisions. A tenant or landlord may end a month-to-month tenancy without cause on 30 days' written notice. The statute permits a 7-day written notice when the tenant is "7 days or more in arrears in the payment of rent," and a separate 7-day notice for cause such as substantial unrepaired damage, nuisance, threats or violence, or unauthorized occupancy. A nonpayment notice is void if the tenant pays all overdue rent before it expires. The 30-day and 7-day notices may be combined in one document.

No specific monetary penalty; a termination without proper written notice is ineffective and cannot support a forcible entry and detainer action (tit. 14 § 6002).