Financing my son's first house purchase

[Jean-Marie Poth]

I am looking for advice on how to help my son get into his first house hack.  There is a two family unit that he can make payments on, but at 18 cannot get approved for a loan.  Has anyone done some creative financing that mutually benefits both parent and child?  How did you go about it?  He has talked of a rent to own from me, a possibility, although terms are vague.  Anyone done something like this?