In each case, this would appear to be a clear example of self-dealing and a breach of fiduciary duties, on the part of your sister. Sadly, you are not going to be able to do anything about this on your own, unless your sister agrees to put the money back. You are going to need to hire a skilled probate litigation attorney to bring these actions to the attention of the probate court.
Best of luck to you with this!
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A POA can not make changes that benefit themselves.
You should see an attorney ASAP to protect your interests.
The answer given does not imply that an attorney-client relationship has been established and your best course of action is to have legal representation in this matter.
The bank may have liability here. I don't know any bank that would allow an agent to change beneficiaries with a general power of attorney. Some states have stronger "agent responsibility" laws than others. If she removed you and left herself as beneficiary, that is clearly self-dealing. It would violate the law in our state. You may be able to challenge this by confronting the branch manager at the bank where this was done, and insist that they refer this to their legal department.
However, an attorney can do this much more effectively, and I would advise you to consult with an expert probate attorney immediately.
Mr. Huddleston is an Ohio-Certified Specialist in Estate Planning, Trust & Probate Law, with offices in Columbus and Dayton, serving client families and private business owners throughout Ohio. He may be contacted directly by phone toll-free at 888.488.7878 or by email CLH@HUDDLAW.COM. Mr. Huddleston responds to Avvo questions as a public service to help educate and provide general guidance to questioners, but his responses are not legal advice and do not create an attorney-client relationship.