hi, my mother has dementia. My father wants to give my sister power of attorney in the event of his death. I’m guessing this would give her full control of the estate and the ability to make any decision about my mother. I would like any big decisions like selling the property to have to be agreed by at least another sibling. Could a stipulation be put in place so another sibling would have to agree before major decisions be made ? If a joint power of attorney was setup not several I guess this would address this, but would both siblings have the ability to manage day to day stuff like managing paying bills ? Appreciate any help,here.