Oregon Revised Statutes Mortgages and Liens § 87.057

(1) A person intending to foreclose a lien shall deliver to the owner of the property upon which the lien is claimed and to the mortgagee a notice in writing not later than 10 days prior to commencement of the suit stating that such person, or others, intends to commence suit to foreclose the lien. Notice delivered to the mortgagee who received the notice required by ORS 87.025 shall be deemed in compliance with this subsection, unless the person giving notice has actual knowledge of a change of mortgagee.

(2) Where a notice of intent to foreclose a lien has been given as provided by subsection (1) of this section, the sender of the notice upon demand of the owner shall furnish to the owner within five days after the demand a list of the materials and supplies with the charge therefor, or a statement of a contractual basis for the owner's obligation, for which a claim will be made in the suit to foreclose.

(3) A plaintiff or cross-complainant seeking to foreclose a lien in a suit to foreclose shall plead and prove compliance with subsections (1) and (2) of this section. No costs, disbursements or attorney fees otherwise allowable as provided by ORS 87.060 shall be allowed to any party failing to comply with the provisions of this section.