Hello. My situation is as follows. My mother has advanced dementia, and my father has been her full time caretaker for years, despite my wishes that we find long term care for her for her safety. My father was diagnosed with advanced cancer this past December. I have one sister. Three weeks ago, I found out she has stolen my parents credit card on multiple occasions, and and has also taken $100,000 dollars from them over the last two years, between personal checks made out to her and her husband. They also got my dad to co-sign on their mortgage last year depsite me begging him not to. Sister promised she would get a job and then refinance the house to get his name off the loan, and they never happened. Now that he is a dying man, he still feels the need to take care of her, at the expense of my mother and truthfully of me. His wish is to gift his home to my sister so that her family can move in and become caregivers for them. He also wishes to divide up the substantial stocks my parents jointly own, and gift them away upon his death, even though my mom will still be alive. He's technically taking all her assets away from her, with the hopes that my sister will do the right thing and manage moms money and house well. I have no faith whatsoever that this will happen. What's worse, is that he has named my sister and I as joint POAs over him once he is incapacitated. My mother also has her paperwork that states POA will be passed to myself and my sister once dad can't fulfill his duties, and that we can work independently of each other. Mom requires 24/7 care and help with all ADLs. I also have reason to believe my sister is stealing my dad's pain meds. She screams at me when I bring up my concerns, that all I'm trying to do is hurt her because I'm mean. Everything in my gut tells me to go for guardianship of my mom and try to stop the absolute slaughter of her assets. But I fear that because my sister will have joint POA of my dad, that she can still ruin everything. I'm upset that I am being put in this situation at the end of my dad's life. I'm upset that I seem to be the only one thinking rationally about mom's assets. The way I see it, once my sister has the house and half the stocks, she can just throw mom to the wind, and the only one with the moral character to pick up the bill will be me, with what little I have. Not to mention, I don't think anyone is qualified to take care of her at home, especially my sister. Help advise please.