Oregon Revised Statutes Mortgages and Liens § 88.020

Any cause of suit involving real property provided for in ORS 88.010 may be joined with any cause of suit provided for in ORS 105.605 in the same complaint or cross-complaint, if both causes of suit involve the same real property or some part thereof and are separately stated. Any person may be joined as a party who is a proper party to either cause of suit. The court, in event of such joinder, may render a judgment that will, among other things, determine the paramount title to the real property involved or any part thereof.