ORS § 545.369
The board of directors may then proceed to obtain releases of the lien of all outstanding bonds against the property it is proposed to sell. Release of the lien shall be in writing and acknowledged by the holders of the bonds in substantially the same manner and form as is required for a conveyance of land. However, the notary or other officer taking the acknowledgment shall include in the certificate of acknowledgment, or in another appropriate certificate, the fact that the bonds described in the instrument were exhibited to the notary or other officer by the bondholder making the acknowledgment. The acknowledgment shall have the same force and effect as evidence as has the acknowledgment of a conveyance. The certificate of the officer taking the acknowledgment that the bonds were exhibited shall be conclusive evidence of the ownership of the bonds by the person executing and acknowledging the release. The acknowledged release shall be filed with the board and recorded in its minutes. The minutes, or a copy thereof certified by the secretary of the board, shall be admissible in evidence with the same effect as the original of the acknowledged release.
ORS 545.369