She can give consent for medical treatment of the baby. She cannot give consent for medical treatment for herself. She cannot sign or give consent for most things pertaining to her. Do you think her mother will sign or give consent when these things come up ?
You need to read the info at the link below. Your son needs to get a job after school and on weekends so he can begin to support his child. The mother needs to do the same. If mom is not in school or working, she will only be eligible for benefits until the child is 12 weeks old.
TEMPORARY ASSISTANCE FOR NEEDY FAMILIES-
http://www.azleg.gov/briefs/senate//...20families.pdf

