Once this happens the city will be sued by a landlord coalition that will argue the fact that they are violating the Oregon state statute that prohibits any sort of limit on the amount of rent you can increase. 

I believe that the IRS redemption rights extend at least as long as other redemption rights that a specific state may allow by statute, but I could be wrong on that. 

Tenants are given opportunity to challenge the balance we are suing them for.Many tenants do not show up in court, resulting in a default judgment against them.Michigan statute requires tenant be given at least 10 days to pay their balance to stay in the property.If paperwork is not correct or tenant has story judge believes, case may be adjourned to allow additional preparation.Judgments are good for 56 days from judge’s signature dateDay 35:AFTER REQUIRED 10 DAYS: We contact tenant about their plans to move or pay.

The most generous I've seen in any city statute so far (where statutes exist) is 5 unrelated people in one dwelling. 

The Rental Referral Agencies in NC (NCGS 66-23) are unlicensed services with narrow powers to allow brokerage-like activities. http://www.ncga.state.nc.us/EnactedLegislation/Statutes/HTML/ByArticle/Chapter_66/Article_23.html See also this case http://leagle.com/decision/1976721228SE2d493_1633.xml/NORTH%20CAROLINA%20REAL%20ESTATE%20LICENSING%20BD.%20v.%20AIKENS which resulted in a change to the definition of "broker" and ultimately allowed for NCGS 66-23.

Does WA state have a Safe Harbor statute, similar to Florida?  

Now in terms of getting the property into the LLC, there is a legal statute that allows you to be able to move any entity into a trust without the banks having an issue, so you might want to to that and then into LLC maybe, not sure if that is needed at that point, but a good lawyer will be able to help you out on that.

This information would be in the state statutes online.

It's important you know the state statutes for the sale of the liens, redemption periods, foreclosure rules, etc.  

It is only in frivolous filings, when it is provided by a specific statute, or provided by contract that you get attorney's fees.