The removal of your wife's name from the deed should have been effectuated at the time your divorce was finalized. Did you question your attorney as to why such a significant task was not finalized at the time if your divorce? With her not being local you may have a large task on your hands.
Speak to your lawyer. You may have to file an action to quiet title.
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Is her name still on the mortgage? If so, this is most likely the reason she won't sign the house over to you. You don't say what country she's in, but if you bring an action for enforcement of your divorce decree, you will have to have her personally served which is often very difficult when the other person lives out of the country. Consult a local attorney to review your paperwork and go over your options.
The judicial mindset seems to trivialize the enforcement of a transfer. If the agreement has too many moving parts, a court may enforce those other parts and ignore the one action that is important to you.
Who are you voting for this November? Good luck.