The Montana roommate agreement is a contract that lays out the rental obligations of each resident in a dwelling and establishes an order for the maintenance of the residence. The agreement defines how the occupants will divide living expenses including rent and shared utilities. It can benefit the occupants to incorporate a schedule for cleaning duties (a separate, more complex form can be attached if necessary). Should there ever be a disagreement between occupants, the roommate agreement will serve as evidence of each roommate’s obligations.