I have been my mothers power of attorney as well as on a joint checking account with her for the past couple of years. She has now had to be placed in a dementia care home and my sister who was not involved with any of her care filed for and got guardianship. I then closed the joint accounts and sent the money to the care home. My sister got copies of bank statements and is now charging me with stealing my mothers money. My mom and I were ok with me spending what I needed as well as me using money from my private account to help her with bills. Since I was a legal joint owner on that checking account does my sister have a legal standing to accuse me?