Estate Law Questions? Ask an Estate Lawyer.
No you cannot legally endorse the check and deposit it. Technically the money belongs to his heir, and can be transferred to the child using the Missouri small estate affidavit form. http://www.courts.mo.gov/hosted/circuit13/forms/BNE_ProbateAffidavitForCollectionOfSmallEstate.pdf
This means that the check must be returned to whoever issued it, to have it reissued in the name of the son's estate, or nyour grandson. Depending on the amount of the check, you may have to open up guardianship to hold money for him.
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