Oregon Revised Statutes Public Organizations for Community Service § 261.610

(1) The proceedings shall be in the nature of a proceeding in rem, and the practice and procedure therein shall follow the practice and procedure of an action not triable by right to a jury, so far as consistent with the determination sought to be obtained, except as provided in ORS 261.605 to 261.635.

(2) The jurisdiction of the district and of electors therein shall be obtained by publication of notice directed to the district, and to the electors individually. The notice shall be served on all parties in interest by publication thereof for at least once a week for three successive weeks in some newspaper of general circulation published in the county where the proceeding is pending. Jurisdiction shall be complete within 10 days after the full publication of the notice as provided in this section.

(3) Any person interested may at any time before the expiration of such 10 days appear and contest the validity of the proceeding, or of any of the acts or things therein enumerated.

(4) The proceedings shall be speedily tried and judgment rendered declaring the matter so contested to be either valid or invalid.

(5) Any order or judgment in the course of the proceeding may be made and rendered by the judge of the circuit court in vacation. For the purpose of any such order or judgment, the court shall be deemed at all times in session and the act of the judge in making such order or judgment shall be the act of the court.