This is a third attempt; the prior two attempted answers did not post.
Your facts are unclear, but it appears that the Decree was in Nevada, you are in Texas, and your ex has moved to CA. If so, you probably cannot sue in TX, which has no jurisdiction over your ex. Normally, such cases are in the place of Decree,/divorce, or the place where the obligor lives so the court has the ability to enforce collections.
As to costs, consider asking for a contingency arrangement, which is permissible in straight arrears collections, but not in divorces themselves.
Answered on Jun 28th, 2014 at 4:33 PM