She would have to file a claim against the estate for the money, and potentially sue if it is not  honored, and she has to do so before the estate is fully probated and closed--once it is, it is too late to seek payment or a share of the estate. Filing an objection to or claim against an estate, or filing a lawsuit against it, is much more complicated than, say, filing a small claims case--the procedural and legal rules are much more complex. Your daughter is advised to retain an attorney (if she is an adult; if a minor, you should retain one for her) to help; it is not likely that you or she could do this on your own successfully.