not an answer to ? but...
Virginia here..... I know that here as most states, if she remarries, you pay no more, I only say this because you said lifetime in your post. Also, here again in Va, it goes by income, so if for any reason you lose your job or have to take pay cut etc...... it can be adjusted, but you better have good reason, if they can show no reason, you willl still have to pay the 250.00 This is to keep people from quiting higher paying jobs just to get out of paying amount awarded by court.
Question for you.... If you have an attorney, Do you not trust his word ? If so, maybe you should not have him as your attorney.... just a thought<shrug>