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So I received an email from an ex girlfriend from 6 years ago claiming that the man she thought was the father of her little girl is not the dad after they took an at home paternity test. She is now insisting that she is mine and wants me to begin taking over fatherly duties. I am shocked! The other guy is hurt and wants no further relationship with the child but has signed the Acknowledgment of Paternity form and his name is on the birth certificate. They have had a father/daughter relationship up until a month ago. My wife and I are shocked, and a little scared. We are not sure what to do. We spoke with a lawyer for some advice and was told there was nothing I could do because the guy signed the acknowledgment of paternity and has been the legal father for over 5-1/2 years. He told me i could possibly challenge it but it would cost thousands. The mother has just informed me that her and the exfather are now challenging the acknowledgment of paternity and trying to remove his name from the birth certificate. I have had no further contact with mother nor any courts. She resides in California and my wife and I live in Texas. What do we do? If it turns out to be true what kind of scarring will this effec the little girl. We dont make millions and cant fly out to see her all the time. What are my options?