I successfully won a custody modification and now my child solely resides with me. His mother must also pay me child support.
I can only give you some general information on how a Texas court might handle a situation similar to yours since I am only licensed to practice law in Texas.
Under Texas law, if a parent has child support arrears, the Attorney General can ask the court to order that income be withheld for the liquidation of such child support arrearages.
However, the amount of such withholding shall be (i) an additional 20% over the amount of the current monthly child support, or (ii) the amount necessary to discharge the arrearages in two years, which ever is less. Tex. Fam. Code § 158.003.
Additionally, there is no statute of limitations to the remedy of curing an arrearage by withholding income. Tex. Fam. Code § 158.102. Even if current support is no longer owed, the court may still order that the arrearage be paid.
Texas follows the Uniform Interstate Family Support Act (UIFSA), which implements procedures for interstate enforcement of support orders in child support cases. If a Texas court issues a support order, the Texas court has continuing, exclusive jurisdiction over the order as long as Texas remains the residence of the obligor, the oblige, or the child.
For more information please contact a Texas family law attorney. Please be advised that my answering of this question does not constitute an attorney-client relationship.