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.
If you are in arrears and owe back child support of at least $150 when the custodial parent receives AFDC, or $500 when she doesn't, and you are at least three months behind on payments, the child support office will take your state and federal income tax return.