Anon #426793,
You understand things pretty well. 1) She may have been the POA prior to death, but she's not now. 2) A living trust controls assets delivered to the trustee prior to death. After death, additional assets can be delivered to the trust by a "pour over" provision in a will; i.e. a will that names the trust as a beneficiary.
A former POA certainly cannot deliver assets into a trust after the principal's death. For whatever reason, they messed up.
She may be a lawyer, but she's not your lawyer. Talk to your lawyer, but I suggest you leave the accounts in the name of the decedent and indicate a profound willingness to turn them over to the personal representative of the decedent's estate when you receive a copy of the order of appointment.
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In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.