I will try to answer your question without having an explicit question asked... Assuming that the lease doesn't automatically renew, then you don't have to renew the lease. It's true that you would have to enter into a new lease, rather than renew the old one, as the old one had your wife on it. But it's not true that they have to have a court order to "remove" her from any potential lease.
Now that being said, it's also not mandatory that they do a new lease or renew your lease. That's up to them. While they have the law wrong, the effect is essentially the same, in that they can maintain that you have to get a court order before they're willing to sign onto a new lease. There's nothing in the law that forces them to have a correct understanding of the law or correct interpretation of it. They only have to avoid breaking the law, and even though they're wrong on this matter, no law is being broken.
Now if I were you I would attempt to speak with management, explain that you spoke with an attorney and what you found out, and ask them to verify it themselves. Hopefully they'll take your word for it.
Hope that clears things up a bit. If you have any other questions, please let me know. If not, and you have not yet, please rate my answer AND press the "submit" button, if applicable. Please note that I don't get any credit for my answer unless and until you rate it a 3, 4, 5 (good or better). Thank you, ***** ***** luck to you!