Okay, if you do not believe that the 2010/2011 will is valid then your only obligation is to offer and probate the valid will. You do this by taking your Will to the Chatham County Probate court clerk, offering the will for probate and requesting that the clerk appoint you the executor of the estate. You have no obligation to notify the court of the newer will since you do not believe it to be a valid will.
If the cousin produces the newer will then the probate court will have to set a hearing to determine which will is valid. However, it is possible that the new will is never presented, particularly if the cousin knows that it was executed under suspicious circumstances. There is no reason to make their job easier by starting the fight from the beginning.
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