[Sundae]

The only thing I can help with is the request for moral support.

You sound like you are paying attention to the situation. You obviously have to bite your tongue and stay tactful, and that is doubly difficult when it comes to family (and older family members I think - perhaps prejudice but it's my experience). You are giving up time and effort in order to try and resolve a situation not of your making.

For all this I admire and respect you. Keep your spirits up and I hope things get better.

Apart from that I suggest you listen to the questions & suggestions from other posters. You probably know how to resolve this yourself, but the answer isn't the one you want - hence asking for input. Good luck.