What's more important -- ensuring that he is not put on life support
against
his will or ensuring that his money goes to his children and not to
medical
care?
For the first, he should get a living will, and make sure that he and his
children all have copies, so that there will be no question about his
wishes
(or if there is a question, it can be readily answered). There is info
specifically for North Carolina at
http://www.ces.ncsu.edu/depts/fcs/frm/pubs/fcs364.html