Thing with divorce is that what you come into the marriage with is NOT considered community property, only what you have accumulated AFTER the marriage. That is how the court sees it unless there are other agrements legally made in the divorce.
So basically anything she had before the marriage is hers & same for you. Any Money if in joint account is considered joint. If business is legally in both names then assets & debt are divided just as assets & debts after the marriage are split. Just the way it legally works unless other agreements are made in the divorce. That is sometimes why lawyers are needed to negotiate