Grounds for Divorce
Montana is a purely no-fault divorce state. This means that nobody is to blame for the marriage breakup. When filling out the petition, the plaintiff has to point out the cause of divorce. This ground must be chosen off the list of the grounds for divorce established by the particular state Code.
Grounds for divorce in Montana include the irretrievable breakdown of the marriage, living separate and apart for at least 180 days before filing for divorce, and severe marital discord that adversely affects the attitude of one or both of the parties towards the marriage.