My question involves name change laws in the State of: Michigan
(not real names)
Joe Smith and Sophie Jones dated in high school and had one child: Ruby Jones (child took mother's maiden name). Father is not on child's birth certificate, but both parties signed an Affidavit of Parentage.
Joe and Sophie split, and there is a custody order in place in which parties have joint legal custody.
Sophie (mother) is getting married, her new name will be Sophie Johnson. As a result, their child in common will have NEITHER of their last names.
Can the mother change the child's name to match her new name without the father's consent, being that the child never had her father's last name to begin with?

