If funds were deposited into the accounts by both then it is both his and hers. She can not will assets to children that she herself did not obtain during the marriage. I would strongly suggest that you retain an attorney. Find out who the Personal Representative is for her as this is the person who will probate (if needed) the will and disburse funds. I suggest that you contest the will. Find an attorney who can file for you. She can leave her children funds that are hers and can be proved. But she can not will funds from a joint account solely to her children. Let me know if you need further assistance.
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