Oregon Revised Statutes Property Rights and Transactions § 105.440

(1) All moneys expended and all costs and obligations incurred by the receiver in performing the abatement shall be reviewed by the court for reasonableness and their necessity in performing the abatement. To the extent that the court finds the moneys, costs or obligations, or any combination thereof, to be reasonable and necessary, it shall issue an order reciting this fact as well as the amount found to be reasonable and necessary.

(2) If the costs and obligations incurred due to the abatement have not been paid, the order of the court shall be filed with the county recorder within 60 days of its filing with the court and shall thereafter constitute a lien on the property.