Should I lodge a caveat?

Hi

I have been advised that I have a case to have the settlement that I agreed to (in the FL court) reviewed as I agreed to it under duress about 3 years ago. However, my ex lives overseas and only has one asset in Australia which is a holiday house. I am concerned that when the case is re-opened in the FL court that he will sell the house and I will have no asset to claim against.

Should I lodge a caveat on the property to stop him from selling until the matter is resolved?

Thanks for any advice