Seller finance and then flip?

[Ian Ray]

A partner and I are currently evaluating a property that we think is a great opportunity (at the right price of course) for us to fix and flip. Originally, we were thinking come in with cash to purchase, rehab, and then move the property.  Now, I am wondering if it wouldn't be smarter to attempt to secure the property with a portion of the cash we have available, negotiate seller financing (the couple trying to sell the house has held it for 2 years with ZERO income from it), rehab it, rent it out, and then sell as a turnkey.  

What is the consensus on this?