Basically your husband is trying to make up for the time he lost and the stability the girls lost when he got divorced and they moved away. In his mind paying insurance is helping them out and being supportive. Giving his difficult child daughter a second chance and letting her start over with him is another way he is being supportive. The timing sucks! He may be misguided on this as well.
Here is my advice....Do not allow her to move in without written rules and a rental agreement of some sort. Make sure in the paperwork clearly states your expectations and the consequences should she not follow them. I say that because in some states once they move in you have to evict them to get them out. Make it a month to month or week to week rental whatever you have to do to make it where you can reevaluate her living there frequently. You might even want to check in to the legality of it all.
