Oh, ugh. I’m so sorry.
I’m sure you and your lawyer have thought of this, but ask for Soberlink tests before, during and after any visits that involve him, which they all will. My guess is that this is all part of the family’s elaborate facade that he has no problem.
No overnights, for sure...that still makes me shudder.
If there’s no problem, they shouldn’t hesitate to agree, right?
Stay strong. Sending my admiration and a hug.