If she has a conditional green card, then you can refuse to sign for her when it's time to remove conditions. Although she could still possibly receive a new 10 year green card (unconditional), it would be more difficult to do so.
If she already has her 10 year unconditional green card, then there's nothing you can do.
If she already has her 10 year unconditional green card, then there's nothing you can do.