Montana StatutesCHAPTER 5. PARTIESPart 1. Designation of Parties25-5-101. Names of parties.25-5-102. Use of abbreviated names.25-5-103. Suing party by fictitious name.25-5-104. Action against business association.Part 2. Capacity to Be a Party -- Joinder25-5-201. Capacity of married person to be a party.25-5-202. Who may defend when spouse sued.25-5-203. Defendants -- adverse claims to real property.25-5-204. Joinder of state as defendant in actions affecting title to property.Part 3. Guardian Ad Litem25-5-301. Appointment of guardian.