Combine that with an overall lack of inventory in a lot of areas, and then natural occurrence is an increase in overall asking prices that will change your 'all in' % accordingly. 

You also have portfolio/private lenders, seller-financing and other non-traditional methods once you reach that cap. 

I’m still a beginner, but I understand the language for the most part.Learning how to use the “Four Square Method” and determining ROIs was a great game bonus.  

I would think you would need an engineer to plan out the flood zone remediation method in order to get building permits approved. 

This is important because although you can refinance prior to that period they would base the numbers on the original purchase price plus verifiable repairs as opposed to the new appraised value (Estimated ARV) which kind of defeats the purpose of using the BRRRR method. 

Be sure to consider properties with year around draw or make sure the seasonal nature can cover the payments in the off seasons.Here in Boise, Idaho; we have such a shortage of properties, I know people that have resorted to renting nightly rentals for months because they couldn't find anything else to rent or buy.

This certainly seems commercial in nature and I do hope your lease reflects that! 

The BRRRR method references getting money to buy the property initially either through cash or hard money, then rehabbing, renting, and refinancing. 

You cant get the same level of detail through other methods. 

Pigeon Forge, Nashville, Knoxville, and Chattanooga naturally come to mind.