All persons holding as tenants in common, joint tenants, or any number less than all may jointly or severally commence or defend any civil action or proceeding for the enforcement or protection of the rights of that party. In all cases, one tenant in common or one joint tenant may sue a cotenant.
Mont. Code Ann. § 70-1-310
Action by or against joint tenants or tenants in common
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.