Legal Question in Family Law in Nevada

The short answer is that you can't relinquish your parental rights unilaterally and thus end your child support obligation, under a Nevada Supreme Court case a few years ago. And even if you could, it would not make the arrears "go away." Your ex, however, CAN waive his right to collection of those arrears, which effectively "erases" them, AND he can stipulate with you to make the prospective amount owed zero.

So partially, it depends on how cooperative your ex is. Also, there may or may not be anything he wants -- like a relinquishment of parental rights in favor of a step-parent adoption, which would give you something to trade.

You should probably seek consultation with an appropriate family law specialist. I would suggest starting your search with the American Academy of Matrimonial Lawyers, the Nevada chapter of which can be viewed at http://www.aaml.org/go/fellows/fellows-by-state/?showResults=true&state=NV. Good luck.