Mont. Code Ann. § 15-24-210

After entry of a notation by a county treasurer concerning a mobile home, manufactured home, or housetrailer that is not taxed as an improvement to real property but before directing the sheriff to make a levy and sale on the mobile home, manufactured home, or housetrailer, the treasurer shall notify a person who has a properly perfected security interest in the mobile home, manufactured home, or housetrailer and who has furnished the treasurer a copy of the instrument by which the interest was perfected of the levy and sale. The notice must state that the sheriff may soon be requested to make a levy and sale on the mobile home, manufactured home, or housetrailer.