I designed a little U-shaped kitchen to fit right in the space.

It usually means there are problems to be solved for the seller which will translate to opportunities for you.Keep it simple on your first 2 deals to minimize your risk.All the best.

Airbnb dynamic pricing has ruined the whole industry.Airbnb's dynamic pricing isn't designed to get YOU a booking. 

Further, running a very quick and simple valuation based on $900 rents, 8% vacancy, 25% op exp margin, and a 9% cap rate, I'm coming up with an ARV of around $83k, so I'd pass if I were you unless you can get a much lower purchase price.

Otherwise reducing the premium is not simple but some engineering firms specialize in flood zone updating.  

The "easy" answer - short term rentals where your brother participates materially in the operations - this would mean 500+ hours a year.It sounds simple from a tax planning perspective. 

BiggerPockets is full of resources designed to help you along your journey, whether you are just getting started or a seasoned investor.

Then plan and design how you're going to deploy that cash via what strategy your wife and you have confidence in.I use a excel or google doc and my first sheet would layout all of the details of the sale including all costs that go into getting closed.

You'll find much greater difference in $$$$$ by refining your location/rehab/vacancy strategies instead of worrying about "how much it costs to borrow money" in this environment.Nearly all of my clients are more concerned with a simple and headache-free funding process, than the "lowest rate."

Infill is simple, but not easy.