Oregon Revised Statutes Revenue and Taxation § 312.170

(1) The governing body of any municipal or other public corporation, having a lien on any real property included in a foreclosure list or proceeding, may use its funds to remove the property from the list or proceeding, or to redeem the property after judgment of foreclosure. Such corporation shall have the same right of redemption as the owner of the property.

(2) Where any municipal or other public corporation so removes or redeems any real property on which it claims a lien, or pays any taxes thereon, the corporation may add to its lien the amount so disbursed and cause that amount to be noted on its lien docket. The amount so disbursed shall be recoverable as part of the lien of the municipal or other public corporation. In case of foreclosure of the original lien claimed by such corporation, the amount so disbursed may be added to the original lien and recovered as part thereof.

(3) Any county and municipal or other public corporation may enter into a cooperative agreement to facilitate foreclosure sales for the collection of delinquent property taxes and municipal liens.