Oregon Revised Statutes Property Rights and Transactions § 90.514

(1) Before a prospective tenant signs a rental agreement for space in a manufactured dwelling park or for a converted rental space, the landlord must provide the prospective tenant with a written statement that discloses the improvements that the landlord will require under the rental agreement. The written statement must be in the format developed by the Attorney General pursuant to ORS 90.516 and include at least the following:

(2) Except as provided in ORS 41.740, a written statement provided under this section is considered to contain all of the terms relating to improvements that a prospective tenant must make under the rental agreement. There may be no evidence of the terms of the written statement other than the contents of the written statement.