Creative financing to flip -partner with owner carry -I pay RENO?

[Seth Rouch]

Have a deal where I had planned on wholesaling it, but am now looking into as a flip. I'm wanting to see about owner financing (as this would leave the title seasoned and leave me with out hard money expenses) while I paid for the Renovation costs. It would essentially be partnering a flip with an owner carry. I would love to hear of any experiences with this as well as legal paperwork I would need for something like this to protect myself as well as the owner should something happen? Difference of $20k finance costs - Thanks in advance!