What do you mean ""? You mean that there's a completed foreclosure?
I have not had the opportunity to review your divorce judgment, what it says about the house, who is supposed to pay the mortgage, or if and when the house is to be sold. If your ex- has violated the court order by failing to make timely payments, you can take her to court over her non-compliance. I don't know if your ex- would presently qualify to refinance the home (I suspect not, given that she's in default on the mortgage) or if the court would order that remedy based upon the full facts of your case. If you had a lawyer represent you for the divorce proceedings, it may be a good idea to consult the lawyer about the judgment and your options.