The 15th law of power from Robert Greene's book "The 48 Laws of Power" is "Crush Your Enemy Totally." This law states that if you defeat your enemy, you should not leave them any room to recover or seek revenge. If you do, they will eventually come back to haunt you.

For those starting the process, this is my advice, I was nice hoping things to be amicable for the kids. Gave her too much time to plan her attack and screw me over. As many have said treat it as a business transaction, protect yourself first and only. Maintain strict boundaries with them.