I estimate it will be 4 months given the amount of work that it needs. 

There is a massive amount of new construction that is easy to aquire and virtually eliminates many of the hurdles you'll want to avoid, you should consider thisFlorida is a no income tax state, we are very landlord friendly, especially with a new bill the governor just signed for squatters, tourism and net migration are fantastic.

If you have or buying a rental/airbnb or even fix and flip.  

thanks for that. would i then be able to be paid from the business at our agreed on dollar amount “as if“ i am being paid for a loan?

I believe I now see how to handle the high desert, buy, rehab, and hold long term this will maximize cash flow and equity over the shortest amount of time.

@Joshua Jacobs I think you maybe referring to a DSCR or Debt Service Coverage Ratio loan if you're looking for a 30 year fixed mortgage.

Are there any $50-60k minimum loan amount lenders?

The lease specifies a deposit amount and you accepted less than that without modifying the lease (or maybe you did modify it but didn't mention it?)

What amount should I start with? 

I'm looking at the protocol to register and then have the safety and lead risk inspections, fix any issues and ultimately get the certificate of compliance for 3 years, then repeat.