You need to open an Estate account with an EIN number to deposit the check into that account not your Mom's account. It's useful to have an estate account in the form of a checking account, but your estate's needs may call for adding a savings or money market account, too.Most Estates only need to open a basic checking account so the executor administrator or trustee can take care of all of the estate's expenses. You need all of the paperwork supporting your claim as executor…the will, any trust papers, valid ID, any lawyers' instructions. In person: Take the necessary documents to a Wells Fargo branch and speak to a banker. Make an appointment. First National Bank's (FNB) Estate Management Account is designed to help you manage your finances while protecting your estate. There may be a need to establish an account in the name of the estate. I am in the process of putting together a list of instructions for my wife in the event of my death.