Monetizing her mother's death, what a POS.
So sorry for Tiffany, after losing a major figure in her family, but time to cut off the siblings NOW, because they will try to drag her into their drama-llama chit. She is not going to be able to talk sense or dignity into them, because
.
Tiffany and her dad are obviously the ones who are feeling the grief and loss. They deserve all the time and attention. No one else has demonstrated this yet. There might be an impulse to "mend the family" after the death of her mom, but it is not currently at a mendable state.
Take care of the ones whose hearts are breaking, not the ones checking their bank balances and thinking what-if.