§ 50-13.2. Who entitled to custody; terms of custody;
visitation rights of grandparents; taking child out of
State.
(b1)An order for custody of a minor child may provide
visitation rights for any grandparent of the child as the court,
in its discretion, deems appropriate. As used in this
subsection, "grandparent" includes a biological grandparent of a
child adopted by a stepparent or a relative of the child where a
substantial relationship exists between the grandparent and the
child. Under no circumstances shall a biological grandparent of
a child adopted by adoptive parents, neither of whom is related
to the child and where parental rights of both biological
parents have been terminated, be entitled to visitation rights.
Also see
http://www.grandparenting.org/Grandparent visitation.htm
It just depends on the factors listed here in the above link. Like whether she is married, if it is in the best interest of the child, ect. But yes, anyone can petition for visitation. Whether or not it is granted is another story. Like I said, they have to take in many considerations.