I have no legal power or knowledge of any kind of her banking, savings, her will or anything. She has never trusted anyone in her life. I am the only child and do not deserve just hateful belligerent treatment. What are my responsibilties if she abuses other people at the bank, police, her neighbors? Her in assisted living or some type of medication to reel in her extreme aggression.
Be aware though that any type of nursing care facility isn't cheap. Prepare for sticker shock. Most want at least 6 mos of private pay before Medicaid kicks in. If she is going in with only Medicaid to pay for it then you have a good 2 year wait. So if its something you are thinking she will need you should get her on a wait list NOW.
Of course that won't stop it making you squirm on her behalf, but you are in no way responsible. Learning not to FEEL responsible, and not to allow yourself to be made to feel responsible, for the behaviour of other people over whom you have no control is, by the way, an important personal breakthrough - well worth working on.
As for her accounts, you will have to see an attorney about that if she has no one she listed to handle them. I wish you luck.