A wind vane has been installed for 3 years without any notice of it being a violation, now the landlord is threatening to evict them for it, are they able to do this?
Related: ORS 90.412
If a landlord knowingly accepts rent for multiple rental periods after learning of a violation without giving notice, they generally waive the right to terminate the tenancy over that violation.
OSTA is educational advocacy, not a law firm. This page is general information for Oregon manufactured dwelling park and marina tenancies — you own the home and rent the space (ORS 90.505–90.850). It does not apply to apartment or other standard ORS 90.100–90.465 rentals. It is not legal advice. Talk with an attorney about your situation.