I only practice law in Texas. I don't know California law.If the child lives in Texas then you donu2019t want guardianship. Itu2019s in probate court and you are under a lot of court control until the child turns 18. It is very expensive and paper intensive in reportingIn Texas you want custody which is in family courts.If the other parent wonu2019t agree to letting the child go to CA to attend school, then the kid is not going in all probability.It sounds like you are trying to leave Texas and move the kid to CA. If the other parent objects, most judges wonu2019t let the state of Texas lose jurisdiction over the child. If you have a strong case and the other parent does not appear or is a 100% loser, you might be allowed to go.Without more info, itu2019s impossible to predict what a judge might do.Iu2019dtalk to an attorney before doing anything.With your wrong terminology you truly need a good family law attorney in court to help you.