Under Utah law, all biological parents have the right to get custody of their child regardless of their resident status and regardless of whether they are married to the other biological parent or not. If you and the other parent are both illegal immigrants, you may run into additional legal challenges. Contact a Salt Lake City child custody lawyer Emy Cordano at Emy A. Cordano, Attorney at Law. She has successfully represented many men and women in some of the most complex family law cases.