Me and my wife are getting divorced, we're going the uncontested route so everything is very amicable and smooth so far. My question is we made the decree which we are currently waiting to be approved by the judge. On one line of the decree is states that my name will be removed from the deed and mortgage of the home, on anther line it states the I'm owed 1/3 of the equity after they refinance the home (her mom owns the house with us)

I recently was told by a third party that she could refinance at the new market value and give me my share of the equity or they can refinance at the currently value of what is still owed on the house and I could potentially get nothing out of the equity. Is this true? And would I be able to do anything about it regardless?