I personally (and professionally) think looking inside of 465 is a great bet!

Quote from @Bruce Woodruff: If the monthly NET profit is truly -$100 (I would bet that it's actually less than that), then I would sell and move on.

What is the sweet spot for home sizes?

So for some hosts, extra screening or house rules enforcement can be the difference between smooth cash flow and a nightmare call at 2AM.No one-size-fits-all for STRs, right?

Friends and family SDIRA money is your best bet.

They are making a bet that interest rates will come down soon and they can refinance at a lower rate. 

Some also explore trusts or partnerships depending on the investment size and purpose.

STR and unique structure makes it more difficult.Next level above a residential appraiser is a certified general appraiser who is able to do both residential and commercial and will have more experience.But if the bank has their own appraiser, then I'll have to tell the bank that I want to use my own appraiser who understands the structure and business of STR.Right  now, best bet for me is to play it conservative, build with cash, run it for 6 to 12 months, show cash flow, get a general certified appraiser and then do a DSCR if traditional financing is unavailable in this small market.

No restrictions on dog size. 

Price is not much more for the larger size because most of the cost is in the transport.