Though I am unsure how I would amortize the up front remodeling costs for P&L, tax accounting.2) Interest only loans term loans -  Would allow current owner to have cash flow on the property, without eroding the asset value. 

We use Appfolio for our long term, but I think you need a minimum of 100 units now, which is sad.

Many traditional banks won’t touch them, and even DSCR lenders will avoid them if the build out is done prior the securing long term debt. 

The key will be to set up terms so your monthly payment works.

I currently have 3 properties under an LLC and I'm in the process of finalizing a mid term rental but it will not be under the LLC(separate bank account).

With rates and lending terms constantly changing, I’d love to hear from those who have recently closed or explored a blanket loan.Which lenders are offering solid terms right now?

I would recommend planning for some unexpected costs on an extensive rehab like this, especially if the current tenant didn't treat the house well.

I wrote about this extensively here and also made reports to the SEC and FBI.

@Robert GonzalezMost any DSCR loan is going to be chalked full of docs where you agree to NOT occupy the property while under the terms of the loan you are signing docs for. 

Prepayment penalties- usually 1-5 year terms.