ORS § 90.417

(C) The notice
permits the tenant to avoid termination of the tenancy for nonpayment of rent
by paying the balance within the time period allowed under ORS 90.394 or by any
date to which the parties agreed, whichever is later; or

(b) The landlord
accepted a partial payment of rent after giving a nonpayment of rent
termination notice under ORS 90.394 and entered into a written agreement with
the tenant that the acceptance does not constitute waiver. The agreement may
provide that the landlord may terminate the rental agreement and take
possession as provided in ORS 105.100 to 105.168 without serving a new notice
under ORS 90.394 if the tenant fails to pay the balance of the rent by a time
certain.

(5) Application
of a tenant’s security deposit or prepaid rent to an obligation owed to a
landlord in foreclosure under ORS 90.367 does not constitute a partial payment
of rent.

(6)
Notwithstanding any acceptance of a partial payment of rent under subsection
(4) of this section, the tenant continues to owe the landlord the unpaid
balance of the rent. [2007 c.906 §29; 2011 c.42 §8a; 2020 s.s.3 c.3 §12]