A married person may be a personal representative, guardian, conservator, or trustee and may personally be bound and may bind the estate the person represents without any act or assent on the part of the person's spouse.
Married Person As Personal Representative, Guardian, Conservator, Or Trustee
Mont. Code Ann. § 40-2-108, under Joint Interests, Obligations, and Powers.
Mont. Code Ann. § 40-2-108