Texas may have jurisdiction over your case. The UCCJEA governs this matter. Typically jurisdiction on a modification like yours will follow the child. How long has the child been living in Texas? Or does the child live in the new state with Respondent.
If the child is with you, you can go ahead and 'domesticate' the AZ Order in Harris County now and then serve Respondent. If the child is with Respondent, then you may have to go to the new state, although you could try to file in Texas and see if she fought you on this.
Regardless, these types of UCCJEA cases are complex, so be sure to find a lawyer who is knowledgeable about them. Here is a link that may be helpful to you:
This information is not legal advice and does not form an attorney-client relationship.
You need to hire a lawyer. A motion for substitute service may be in order.
This answer DOES NOT establish an attorney-client relationship. This answer is based on the limited information provided and is not intended to be conclusive advice. There are likely other factors that might influence or change the advice after a more lengthy consultation.
You don't transfer a case as evidence against the other party in the usual sense. You transfer the case so that a different court will handle the hearings -- usually because the child has moved and has lived in the new county for at least 6 months. Confer with an attorney.
This does not establish an attorney/client relationship. Dallas, Denton, Collin and Tarrant County, Texas practice area. Principal office located in Lake Dallas, Texas.