N.C.G.S. § 50-20(b)(2)
“Separate property” means all real and personal property acquired by a spouse before marriage or acquired by a spouse by devise, descent, or gift during the course of the marriage. However, property acquired by gift from the other spouse during the course of the marriage shall be considered separate property only if such an intention is stated in the conveyance. Property acquired in exchange for separate property shall remain separate property regardless of whether the title is in the name of the husband or wife or both and shall not be considered to be marital property unless a contrary intention is expressly stated in the conveyance. The increase in value of separate property and the income derived from separate property shall be considered separate property. All professional licenses and business licenses which would terminate on transfer shall be considered separate property.