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She didn't tell the superintendent but she told the landlord that she had an extra set of keys made. She said she would come back for anything remaining. But the only things remaining were the cable boxes, which the superintendent unknowingly threw out.
She just gave the keys to the superintendent, and didn't tell him anything, but told the landlord she had an extra set of keys made and she would return before the end of the month to get her remaining things, but the only things left were the cable boxes. Not sure why she left them.