Your post neither provides valuable or additional information nor did you post direct questions like the rest of us do.    

With the HELOC and then converting it to a term loan you will probably be paying higher interest and/or shorter amortization period on conversion which will mean higher monthly payments.

All businesses can hit speed bumps during any growth period. 

You can BRRRR the deals that make sense and sell the rest.

The rest of the home was kept in good condition for resale.

My favorite source is Navy Federal for its long draw period of 20 years, and Figure for its fast funding.  

The rest of the home was kept in good condition for resale.

The “borrower” would have an option to buy back the property if (1) all lease payments (“mortgage payments”) have been made and the borrower/seller pays is the sale price/loan amount in full at the time the option period/note matures.  

What is the time period required before refinancing?

@Jordan Kaylor @Jeanette Land    Seasoning requirement is a industry term for waiting period.