Nevada Letters Testamentary are documents issued by a court of law to appoint an executor of an estate. They are only issued after the probate court has confirmed the validity of a decedent's will. The Letters Testamentary serve as proof that the executor has the authority to act on behalf of the estate and to manage all of its assets and liabilities. There are two types of Nevada Letters Testamentary: Letters of General Testamentary and Letters of Special Testamentary. Letters of General Testamentary are granted when the executor is authorized to handle all the estate's matters, while Letters of Special Testamentary are issued to an executor who is only authorized to take care of specific matters.