Courts issue Letters Testamentary to give an executor the legal authority to manage and settle a deceased person’s estate. Letters Testamentary allow the executor to pay debts, file taxes, access bank accounts, transfer property, and distribute assets to beneficiaries according to the will. The court confirms the executor’s eligibility and authority during probate before issuing Letters Testamentary. Without Letters Testamentary, an executor cannot legally act on behalf of the estate.