Generally, only certain denominations and religions have use of godparents. ... Unless there is legal documentation that provides additional rights, the godparent is not a legally bound person to the family, and there is no legal process that can protect his or her rights to visitation or custody.
What does being a godparent mean legally?
In both religious and civil views, a godparent tends to be an individual chosen by the parents to take an interest in the child's upbringing and personal development, to offer mentorship or claim legal guardianship of the child if anything should happen to the parents.