May not happen any time soon, but the law already exists permitting the jurisdiction ability to not allow STRs in ADU or JADU.  

From what I'm gathering on this thread, though, it seems like there wouldn't be anything to "preapprove" if the intent is to use a portfolio loan; you'd have to have a performing asset in place in order to demonstrate an ability for the investor or LLC holding the property to pay back the loan, and you'd run the risk of leaving all your capital tied up in the property if you were ultimately unable to get approved for that portfolio loan when the time came. 

And without the ability to predict future, a better mindset is "I don't know, and I don't care", cuz you know overall it is going up.But I do think local market is a little easier to predict if you have knowledge and experience, but don't count on too much to appreciation is the key I think.  

With a 30-year amort and 10-year IO options - as well as ability to get rate down quite a bit if you have long-term horizon (5+ years so don't mind prepay) - the rates/terms and monthly payment will likely be very attractive.Others too have done the DSCR Portfolio Loan (Blanket Loan) refinance option too (refinanced the 10 properties that are under conventional into one blanket DSCR Loan and start the process back from 0 on conventional), however, given current rates, don't see it a lot currently since the refinance would typically mean racheting up interest on those

Without the SSN the ability of the CRA (consumer reporting agency) to cross reference information is hindered. 

HUD doesn't have the ability to implement rent control anywhere other than government owned or specific government financed housing.

The DSCR (the ability for the rent to cover your mortgage) will impact your rate, so the higher the DSCR the better.

To me the biggest risk to STRs is the municipalities shutting down the ability for owners to rent homes out short term. 

circumstances.. education.. personality .. innate abilities.. lack of understanding basic math..desire .. drive.. familial pressures..  

If so, does it also tie up the tenant's ability to obtain a moving permit?