Montana Title 27. Civil Liability, Remedies, and Limitations § 27-1-316. Breach of covenants in grants of estates in real property

(1) The detriment caused by the breach of a covenant of seisin, of right to convey, of warranty, or of quiet enjoyment in a grant of an estate in real property is considered to be:

(2) The detriment caused by the breach of a covenant against encumbrances in a grant of an estate in real property is considered to be the amount that has been actually expended by the covenantee in extinguishing either the principal or interest of the amount, not exceeding in the former case a proportion of the price paid to the grantor equivalent to the relative value at the time of the grant of the property affected by the breach as compared with the whole or, in the latter case, interest on a like amount.