BRRR Strategy question, the last R

[Andrew Halbert]

I know this topic has been discussed, I am clear on all the steps in this method, however I am not clear on how to make sure I will be able to refinance? I know not to expect more than a 70% LTV from the lender, however I am concerned that as I progress with more properties my DTI will hold me back from being able to refinance through conventional refi. I just watched Brandon's webinar and I understand banks that do portfolio loans are a great option.

The real question is how do I prepare the best way possible for the re-finance part.  It seems incredibly risky to take on private money, or even Hard money in "hopes" of being able to refinance.  If I could not refinance, I imagine that could be devastating.  Am I over thinking this?