Unless you specifically forbade him from entering the home, he has not done wrong by returning and taking property that is martial in nature.
He has wanted a key back to the house numerous times and I have not given him one. My concern is that these are assets that are paid for. If he sales them, I am entitled to half correct? I’m concerned that he is trying to sell off all assets that have cash value.
An accounting of all assets owned at the date of separation should be done to ensure the value of these items is included in a final distribution of the martial estate.