Wholesale with a twist of a note creation?

[Matthew Koch]

Is it possible to lock down a deal to where If i put in my earnest money deposit and I find the back end buyer and they only want the property at 300k and the seller wants 360k, can I or am I legally able to make it create a note, or do I need a mortgage originator, to then close on the deal for 375k for my profit of 15k, the seller gets their 360k and the backend buyer would purchase at 300k from me? Meaning the terms of the note would be that I hold the note and carry it for 5 or 10 years and allow the seller to move out, backend buyer come in and rehab the property, get it sold at an arv starting at 490k and up 525k, then when they are done and completed then the contract is paid in full and everyone is square from there? If not then this deal is not such a deal after all.....