After filing Form N-400, Application for Naturalization, the entire naturalization process can take anywhere from 5-8 months. This is an approximation. It may be shorter for some and longer for others.
Best Answer Thanks! I assume from your question that you have a court order for child support that ordered your ex to pay the $820 per month. Assuming this to be the case, and assuming that the court did not allow your ex to reduce his payment, you can go back 10 years to collect arrearages.
But even unemployment benefits can be garnished in order to pay back child support. In extreme cases, a prison sentence can be handed down to a deadbeat parent who chronically avoids paying child support. In most cases, you are entitled to collect 100% of the money owed to you in the form of back child support.