Options after divorce

[Carlos C.]

Hi everyone! Quick question here, 3 years ago I got divorced and we reached an agreement with my ex-wife, in which she gave me money and she kept the house. We agreed to leave the mortgage with both our names and she would refi the property as soon as possible. 

3 Years later, she hasn't. All payments have been made in time, which is good, but now that I wanna start investing, this could pose a problem.

What should I do? By the way, the divorce decree didn't mention anything about her refinancing or anything like that.

Thanks!