The obligor who owes the support or any co-owner of the asset that is subject to the asset withholding order may contest the order to withhold. Contests are limited to the following issues:
(1) The amount of the arrears;
(2) The validity of the order;
(3) The extent of the obligor’s interest in the asset; or
(4) The amount which qualifies as a homestead exemption pursuant to section 55-1008, Idaho Code.
Issues that have been previously adjudicated may not be contested.