Montana Title 7. Local Government § 7-2-4302. Annexation of contiguous municipalities

(1) When a city or town desires to be annexed to a contiguous city or town, the council of each thereof must appoint three commissioners to arrange and report to the municipal authorities, respectively, the terms and conditions on which the annexation can be made.

(2) If the city or town council of the municipal corporation to be annexed approves of the terms thereof, it must by ordinance so declare and thereupon submit the question of annexation to the electors of the respective cities or towns. If a majority of the electors vote in favor of annexation, the council must so declare and a certified copy of the proceedings for annexation and of the ordinances must be filed with the clerk of the county in which the cities or towns so annexed are situated.

(3) When the copy of the proceedings and the ordinances is filed, the annexation is complete and the city or town to which the annexation is made has power, in addition to other powers conferred by this title, to pass all necessary ordinances to carry into effect the terms of the annexation.

(4) Such annexations do not affect or impair any rights, obligations, or liabilities then existing for or against either of such cities or towns.