Expect her to be in full on crazy mode. That way anything less is a piece of cake.
Don't sign anything legal. Don't respond to her about the papers if you get them. Tell her, "My lawyer will be handling that."
You can handle it.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.