Oregon Revised Statutes Revenue and Taxation § 311.729

(1) Prevent the collection, by foreclosure, of delinquent property taxes which have become a lien against the homestead that is the subject of special assessment deferral provided in ORS 311.702 to 311.735.

(2) Prevent the granting of deferral of property taxes pursuant to ORS 311.666 to 311.701.

(3) Affect any provision of a mortgage or other instrument relating to the homestead.

(4) Prevent the collection, by appropriate collection proceeding, of delinquent special assessment installments which are a lien against the homestead but which have not been deferred as provided in ORS 311.702 to 311.735. Upon determination by the local government unit that any nondeferred installment is in default, the whole sum, including deferred amounts of the special assessment for local improvement shall become due and payable at once.