Whenever the right of reentry is given to the grantor or lessor in any grant or lease or otherwise, such reentry may be made at any time after the right has accrued, upon 3 days' notice, as provided in this chapter.
Mont. Code Ann. § 70-27-106, under Definitions and Preliminary Procedure.
Mont. Code Ann. § 70-27-106
Whenever the right of reentry is given to the grantor or lessor in any grant or lease or otherwise, such reentry may be made at any time after the right has accrued, upon 3 days' notice, as provided in this chapter.