Not enough information. Is there a will? What is the current status of the probate proceeding? Why is the Public Administrator involved if the Bank of America is an "Executor?" What is the harm that you claim has been done?
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I agree. Heirs at law must be notified of probate of a will. The probate court is without jurisdiction unless heirs at law are given notification of probate. However, the big question really is, are the heirs at law going to contest the will? Otherwise, notice can be cured and the court will have jurisdiction to proceed.