What crappy timing right?!?! I know how you feel. I'm a mom with 2 kids, 1 with my hubby and my oldest is with another guy. Yes I get support for her but it's a piss poor amount and I really could care less if he paid it let alone had contact with her. But, she has every right to get financial support to take care of her from him. I'm even going to suggest that maybe she is in a money bind and that is why she seeked him out, hoping that extra money from him would help make her ends meet. I will say though that she has no right to call him at all hours of the night unless it is an emergency-his Daughter is in the ER, she is in the ER and needs him to take her, etc. You both need to start docomunting the calls-date, time and nature of call, whom called (he called her, she called him). If it is in the middle of the night, don't answer the phone, that is what voice mail is for and if it is important enough, she'll leave a message. Also, make sure he is getting visitation. It will more than likly go through the state that she is living/filling in for support. So check state laws. And error on the side of caution, since it has been 14yrs, unless this little girl is a spitting image of daddy, get a paternity test!
As far as money works, (also varies by state law) the court will look at his and her income and how many children they currently have as well. The courts will make sure he can provide for his other kids. Some states only look at their income, some like Flordia will look at her and her husbands income if she is married and vise versa for him.
What you should really be upset about is this guy not being up front to you about the girl in the first place because now it has come back and bit him in the ares!
Good luck!
S.