She can contest the registration, anyone can contest anything that is filed with the court, however you have met the requirements for registration of the order and she will not succeed. Registration and jurisdiction are two separate things. If either party wished to change the order they would need to file a motion to modify custody. If either party filed a motion to modify custody she could contest the jurisdiction of the court. It is unlikely she would succeed.
In NC the basis to modify the order is a substantial change in circumstances. You must prove that the circumstances that existed when Wisconsin entered the order have changed and that a change in custody is warranted.
P.S. Please feel free to bring up this or any other topic on our live call-in show every Wednesday at 11:00 a.m. EST. Visit radio.rosen.com/live for details
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
Charlotte Office
301 McCullough Drive
Suite 510
Charlotte, NC 28262
Main Phone: (704)307.4600
Main Fax: (704) 9343.0044
Durham & Chapel Hill Office
1829 East Franklin Street
Building 600
Chapel Hill, NC 27514
(919) 321.0780
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