Mont. Code Ann. § 72-3-622
If two or more persons are appointed corepresentatives and unless the will provides otherwise, the concurrence of all is required on all acts connected with the administration and distribution of the estate. This restriction does not apply:
History: En. 91A-3-717 by Sec. 1, Ch. 365, L. 1974; R.C.M. 1947, 91A-3-717(part).