To add a 4th point if you will, more like point "3a" (it's kinda closely tied to your 3rd point), if the Buyer ever wanted to sell, the Buyer would be "locked in" to that deal for at least a decade or until the house was "above water".  

If she moves out quickly, offer her a profit-sharing agreement of 5% or less on top of your goal profit when the property sells.

It required the seller wanting to sell to us and decide to be willing to owner finance 75% and coming across a group of siblings looking for a 1031 that we were able to partner with.

You work for a period of time, you sell the house, you get a chunk of money, and then you are done.A long-term rental will bring money for the rest of your life and continue to grow in value. 

I have another car that’s paid off that I am going to sell for around 15k.

He doesn't want the hassle of doing that anymore, but selling his property will be a challenge.

OK, SO HERE'S THE DEAL . . .I have a motivated seller who is desperately wanting to sell his commercial property.

Not that I am interested in selling now.

Certain things need to be redone for selling vs renting vs personal.

You're selling this property to the tenants and this will surely sour the relationship.4.