Questions about the Brrrr process.

[Brent Moonsammy]

hey there everyone, my name is Brent and I’ve been studying to be an investor for the past several months. I’m becoming more and more confident in the Brrrr method and am hoping to structure my portfolio around this idea but I was hoping you could fill in some gaps. 

1) does this method work with structures that require no rehab whatsoever? If I had a low rate on a 30yr fixed and planned to keep the property while producing positive income Would refinancing help or hurt me? 

2) if I buy a rehab project with a market value of $80k for $40k is it smart to tap into any amount of equity to fund the rehab cost?