Once the children have lived here for six month North Carolina has jurisdiction over them. However, unless there is a court order or custody agreement your Wife could take the children and move back to the state you used to live in and your recourse would be to file a lawsuit and try to bring them back. If the children are comfortable and familiar in their former state and they have friends, family, and a support network there, there is a good chance the court would let them move back. The court does have a preference to leave children close to both biological parents, but they will consider all factors when making a decision.
I cannot tell you if this is a good idea emotionally, only you can decide that. If the court believes you moved her down here only to allow NC to assume jurisdiction, that may not reflect favorably on you.
Helena M. Nevicosi
Attorney with Rosen Law Firm
4101 Lake Boone Trail, Suite 500
Raleigh, North Carolina 27607
919.787.6668 main phone
919.787.6361 main fax
301 McCullough Drive
Suite 510
Charlotte, NC 28262
Main Voice: 704.307.4600
Main Fax: 704.943.0044
1829 East Franklin Street, Bldg 600
Chapel Hill, NC 27514
919.321.0780 main phone
919.787.6668 main fax
The response posted above is based upon the limited factual information made available and is not intended as a full and complete response to the question. The only reliable manner to obtain complete and adequate legal advice is to consult with an attorney, fully explain your situation, and allow the attorney sufficient opportunity to research the applicable law and facts required to render an accurate opinion. The basic information provided above is intended as a public service but a full discussion with an attorney should be undertaken before taking any action.