I believe the correct procedure is to wait until someone comes in with legal documentation (e.g., appointment as executor) that will entitle them to have the account drilled. I'm hoping this is regardless of the state (we are in NM).
If they don't, then we would just wait until the escheatment period is over, drill the box, and send record of contents to the state.
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I hear and I forget. I see and I remember. I do and I understand.--Confucius