Mont. Code Ann. § 70-23-401

While the property is submitted to this chapter, a unit in the building may be individually conveyed, leased, or encumbered and may be the subject of ownership, possession, or sale and of all types of juridic acts inter vivos or mortis causa as if it were sole and entirely independent of the other units in the building of which they form a part, and the corresponding individual titles and interests shall be recordable.