Answer: One issue is accepting rent from a possessor after the legal tenant has gone. This can occur, for example, where someone is residing at the space under a Temporary Occupancy Agreement, but the approved tenant, no longer resides there. Alternatively, the person could be a lawful visitor, who has overstayed their permitted time, and the legal resident has left.
Update: Last week the MHCO Board decided unanimously to make a major contribution to "Say No To Rent Control". This coalition will be working to overturn the new Portland City Code. The MHCO Board believes that any trespassing on landlord's ability to raise raent needs to be strongly rebuked.
Answer: Much depends on your rules and rental agreement, which you've not addressed. For purposes of my response, I will assume that one or both of these documents require that if a resident wants to have a person live with them at the home, they must so notify the landlord, get a background check and have management approval.
Answer: All good questions. Here is what ORS 90.275 says about temporary occupant agreements:
Answer: So long as the park reasonably believes under all the circumstances that the tenant has left behind the RV with no intention of asserting any further claim to it, the park does not need to file an eviction action. Instead, the park can treat the RV as abandoned property and issue an abandoned property notice.
Answer: You must have at least one person who is 55 years of age or older living in at least 80% of its occupied units. This 80/20 rule is critical. Generally, communities strive to be over 80%, since falling below 80% occupancy [even upon death of a qualifying 55+ resident] means immediate disqualification.
The key is to recognize that a manufactured home community is not just a business enterprise; it is also a small town. The residents expect you to be, from time to time, something of a mayor, judge, law enforcer, mediator and diplomat - as well as bill collector and manager of buildings and grounds.
Answer: You are correct that ORS 90.630 may only be used to give residents notice of a violation and an opportunity to cure. This is not so say you couldn'tuse a 30-day notice in this case, but the "cure" would be for the resident to stop possessing the meth, which would be highly difficult to verify.