Oregon Revised Statutes Public Health and Safety § 468.268

(1) The proceedings authorizing any bonds and any mortgage securing such bonds may provide that, in the event of a default in the payment of the principal of or the interest on such bonds or in the performance of any agreement contained in such proceedings or mortgage, such payment and performance may be enforced by suit, mandamus or by the appointment of a receiver with power to charge and collect rents and to apply the revenues from the facilities in accordance with such proceedings or the provisions of such mortgage by foreclosure of any mortgage or by any one or more remedies specified in the proceedings.

(2) Such proceedings or mortgage may also provide that any trustee under such mortgage or the holder of any of the bonds secured thereby may become the purchaser at any foreclosure sale if the highest bidder therefor.