Oregon Revised Statutes Probate Law § 112.238

(1) Although a writing was not executed in compliance with ORS 112.235, the writing may be treated as if it had been executed in compliance with ORS 112.235 if the proponent of the writing establishes by clear and convincing evidence that the decedent intended the writing to constitute:

(2) A writing described in subsection (1) of this section may be filed with the court for administration as the decedent's will pursuant to ORS 113.035. The proponent of the writing shall give notice of the filing of the petition to those persons identified in ORS 113.035 (5), (7), (8) and (9). Persons receiving notice under this subsection shall have 20 days after the notice was given to file written objections to the petition. The court may make a determination regarding the decedent's intent after a hearing or on the basis of affidavits.

(3) The proponent of a writing described in subsection (1) of this section may file a petition with the court to establish the decedent's intent that the writing was to be a partial or complete revocation of the decedent's will, or an addition to or an alteration of the decedent's will. The proponent shall give notice of the filing to any personal representative appointed by the court, the devisees named in any will admitted to probate and those persons identified in ORS 113.035 (5). Persons receiving notice under this subsection shall have 20 days after the notice was given to file written objections to the petition. The court may make a determination regarding the decedent's intent after a hearing or on the basis of affidavits.

(5) The fee imposed and collected by the court for the filing of a petition under this section shall be in accordance with ORS 21.135.