Women usually get half of their ex-husband's pension in a divorce settlement. Better sue him before he remarries or the new wife will get her talons into it before you can. Good luck!
You can pay the attorney to reopen the case and go after your marital share of the pension. Make sure he pays your attorney fees because his deceit reopened the case.
Gracie: Research the divorce laws about this on line. Also, return to your Lawyer or get one if you didn't have one about this. If you have anything in writing about this, bring it to the Lawyer.