Its been 7 years... Now she wants the house

I'm From NC. I have been divorced for 7 years but there was never any property settlement. Now my ex has remarried and they want the house. This was property we purchased during our marriage... I never said anything because she lived there with the kids. I Pay child support but she pays the mortgage. She has sent me papers to deed the house over to her. What Legal rights do I have.
Thanks
Chris1759

Duplicate post.

https://forum.freeadvice.com/showthread.php?t=329292