A homestead can be abandoned only by a declaration of abandonment or a grant thereof executed and acknowledged by: (1) the husband and wife if the claimant is married; (2) the claimant if unmarried.
Mont. Code Ann. § 70-32-302, under Conveyance, Encumbrance, and Abandonment of Homestead.
Mont. Code Ann. § 70-32-302
A homestead can be abandoned only by a declaration of abandonment or a grant thereof executed and acknowledged by: (1) the husband and wife if the claimant is married; (2) the claimant if unmarried.