As you have not commenced the divorce and therefore the court has no jurisdiction over you, you are free to close all of your accounts and open new ones which she would not have any access to as long as they were in your name only. That being said, I would suggest that you speak to a family practitioner as quickly as possible to understand the consequences of such an action and whether or not they are wise in your current circumstances.
Answered on Aug 19th, 2015 at 6:02 PM