So, the reason why B has been banned is because she showed up at the hospital when F gave birth and at one of the visitation days at the rehab center while she was high.

F was going to give up custody temporarily to B, but when the center found out they had to act and that is when they put a ban on F moving back in with her mom afterwards, which also forbid F giving up custody to B, even temporarily.
F has to get recertified as a massage therapist and as soon as she can be trusted to leave the facility for day trips out, she is going to do that. She seems to think that is going to happen next month, but MIL says that it won't be for at least another 4-5 months. F says that Baby Daddy doesn't want anything to do with the baby. F has been diagnosed with Cervical Cancer, but has decided to do nothing about it until she gets out of the facility, because she thinks it's just going to be a few months.
MIL's health continues to decline. She has diabetes, CHF, and COPD. Gabby says she looks so much worse than she did even back in December. It's totally breaking her heart to see her mom like this. Back in December, she looked really bad to me, it was really a shocker as to how much worse she looked from when we saw her just 4 months earlier.
I am seriously considering cancelling our August trip on the basis of "just in case" because of all of the balls that are up in the air at the moment. It's money that we don't have to be spending and time off that we might need to keep for emergency use. I am going to have to discuss this further with Gabby when she comes home. It's hard to have some conversations without being able to look the other person in the eye.
This whole thing just makes me so glad that I am an only child.