My wife (she is the sponsor) and I have been married for over three years, but this marriage just doesn’t work anymore and I’m thinking about divorcing her. In a few months I have to file the I-751 for removal of marriage condition and I’m thinking about applying for the waiver of joint filing requirement. But if I divorce now, I don’t know if the divorce will be final by the time I have to file the I-751. Do they provide an extension if my divorce is not yet final? Also, do most of these cases get approved if the marriage ended in divorce, even proving that it was in good faith? Does it make a big difference if I'm the one that wants to get a divorce but she doesn't?