I hope this all works out for you; and that you’ve “dotted the I’s and crossed the T’s.”
Your situation and the above comments has made me curious on our own car situations. My kid drives our car, but just moved out. I just chatted with our insurance: if car has a separate permanent address, it can’t be insured under our policy even if we own it. If car has a separate owner but is parked permanently at our address, it can be under our policy.
sorry about your situation; but by your posting it’s made me aware that kiddo needs to get his own insurance NOW! so thanks for starting this post. Good luck!