The other attorney is threatening to go into court "ex parte" and get a court order for possession.
Without knowing exactly what the underlying judgment was (you say there was a judgment to sell the home), I do not know whether or not that is going to be sufficient to get you out of the property.
In many cases, it is not - the judgment is only sufficient to trigger sale, but not possession.
However, if your judgment included a judgment of possession, and you are refusing to vacate, then the other party very well may get their ex parte order granted, and you will find yourself with an order requiring you to vacate, quickly followed by a "writ of eviction" being served by the sheriff (they usually give a 3-5 day "warning" (not required), then show up with a "forcible eviction" where you are actually forcibly removed from the property while the other party has hired movers take everything from your home and place it on the street curb).
If you really need a month in the place, go at least talk to a local lawyer - you are only looking at a consult fee, and perhaps an ex parte appearance fee, so this is less than you would pay for a month's rent anyway, but if you are this far into it (have a judgment ordering the sale, and are refusing to vacate), I would be very concerned.
You can find local attorneys using the State and local Bar Association directories, or private directories such as www.AVVO.com; www.FindLaw.com; or www.Martindale.com (I personally find www.AVVO.com to be the most user friendly).