I am also told I am only a beneficiary and don't have a say. I feel my sister is abusing my mom's bank account. My sister has been living with my mom since June of 2016. My sister put a lock on her bedroom door and has taken anything and everything of importance and hides it. She has rerouted my moms mail to a PO BOX, so now my mom see's nothing. My mom does have dementia, but she can still open mail and read it, she is not bed ridden at all. My mom has no mortgage, car payment, loans or credit cards. In january of 2017 her expenses were almost 3,000. My sister also didn't pay her cable bill and cable was turned off. my sister did finally pay it and then caused my moms bank account to be almost negative $300. With just some of this, should i be concerned and can my sister hold things from me if i want to see them?