ORS 105.205: Who may maintain partition.

When several persons hold real property as tenants in common, in which one or more of them have an estate of inheritance, or for life or years, or when several persons hold as tenants in common a vested remainder or reversion in any real property, any one or more of them may maintain a suit for the partition of the real property according to the respective rights of the persons interested therein, and for a sale of all or a part of the property if it appears that a partition cannot be had without great prejudice to the owner.