O, that sounds good but maybe a little wordy. I would be more direct and to the point.
"H, it is time to move out. You are welcome to visit the children- we can either work out a visitation schedule with a lawyer or you can agree to give me 24 hours notice before visiting them. I expect that you will act in their best interests and not expose them to OW because of her illegal drug use and also because it will confuse them. I will hire a lawyer at some point in the near future to iron out the details. Your belongings are in garbage bags in the garage, please take them with you now."
