My brother and sister are financial POA's for our mother who has Alzheimer's and is in a home. My brother only has access to one of her accounts which has a very small amount of money in it. My sister is the ONLY person who has access to the account that my mother's bills are paid from, including her care home fees. My brother has received a call this morning saying there is a large outstanding bill due for her care home fees and if its not paid in 7 days they will start legal action. My brother is very concerned that this debt will be applied to him, can anyone help?