Help with doing BRRR with seller financing in place

[Clifford Charles]

Hello BP friends, I have a seller who is open to doing seller financing on the purchase chase price of 3 separate duplex as a portfolio deal. However some of the units need some work. Any suggestion on how I can structure this deal so that I can recoup my downpayment and repair cost (about 160k combined). There will be at least 15 to 20% equity left on each duplex if I was to refinance for the full purchase price and repair cost. But I would like to leave the seller financing in place. Thanks in advance