Does dad have the ability to contact SS offices to have the funds moved to the new bank? By way of explanation - my Mom went into memory care in 2020 with fairly advanced Alzheimer's. She always handled their finances and she and my Dad (who's still living and is showing early signs of dementia himself now) had a joint bank account into which her SS payments were automatically deposited. My Dad has been using these funds for things like tires on his car, etc., not for her care (though he does pay for her medicines, and LTC insurance is covering the Memory Care facility). He closed the bank account out and moved the funds to another bank, forgetting that my Mom's SS checks were getting deposited there. He's now trying to get the SS office to start sending the SS deposits to his new bank and he's getting nowhere with the SS office and he's asked for my help in sorting this out.
My sister has DPOA for my Mom and wants the funds moved into a separate bank to be used for my Mom's care only.
Do either of them have the authority to do what they want (Dad to move the funds to the new bank, sister to open a new account)? I don't want to be in the middle, so just trying to help understand what's what.