Setting Monthly Payment for Seller Financed Deal

[Brandon Sturgill]

Is there a strategy for setting the the amount paid on a seller financed deal where owner has 100% equity....something like the 70% rule for rehabbing, or the 2% rule for cash flow properties...seems the lower the monthly payment, the more potential return...

(this is a single family that would typically rent at 1000/mo. after a $5,000 touch-up)