BRRRR method refinance

[Travis Bobo]

For those of you using the BRRRR method, how are you getting refinanced for less than $50k?

I have looked at buying several properties in the $40-50k range for cash and then pay cash for the rehab.  They would then appraise for $70-80k.  The problem I am having is how do I get my cash back out of the property?  No one seems to want to do a 30yr mortgage for less than $50k.  A $50k mortgage then kills my cash flow.  I can get a commercial loan for 15yr, but this also kills my cash flow plus it's an adjustable rate.  Where could I get a 30yr mortgage for $30-35k on a property that appraises for $70k+?

I've talked to a broker and 2 community banks.

I'm sure that I am missing something.

Thanks