Her child is the reason why she overstayed. She gave birth to my niece in the US 3yrs ago.
Our original plan was to file sponsorship for my mom(also overstaying in the US), but it is currently on hold
until 2014 I think. So sponsorship now falls unto my sister(overstaying) and her child(US citizen). I hope
someone can give me an idea about the situation. Thanks for the reply. 8)