Montana Title 70. Property § 70-6-606. Renter default--access restriction

(1) The operator has the right to deny the renter access to the leased space at the self-storage facility if:

(2) A reasonable late fee may be imposed and collected by an operator for each period that a renter does not pay rent or other charges when due under the rental agreement if the amount of the late fee and the conditions for imposing the fee are stated in the rental agreement or in an addendum to that agreement. A late fee of $20 or 20% of the monthly rent, whichever is greater, is a reasonable fee and may not be considered a penalty. Any reasonable expense incurred as a result of rent collection or lien enforcement by an operator may be charged to the renter in addition to late fees.

(3) A renter who purposely or knowingly accesses a leased space after having been in default of the rental agreement and denied access under subsection (1) may be prosecuted under Title 45, chapter 6.