My son moved out at the age of 18. What if any legal obligations do I have if any? Do I need to continue supporting him in any way? By the way I live the state of Minnesota.

Do you mean pay child support to the custody parent ?

Or do you mean pay his bills, like cell phone, car payment, insurance and so on.

Please give more details to allow us to better answer please.

You are correct, I am talking about any cell phones or insurance both medical or car.