They only take ~10 people from OOS with like between 800-1,000 applicants. You're going to need a HIGH DAT probably 23+ AA. And a high GPA (3.7+) and some other stuff that makes you stand out. The OOS they accept are from neighboring states usually, KY , SC , GA. For most people, its not worth applying to versus other schools OOS.
Residency in NC isn't too difficult to get, but I think the main thing like anywhere else is rebutting why you moved there other than educational purposes.