A sample Letter of Authority can be found here. Here is a video explaining how to file for one. L9dulcFADHc.The executor will use the Short Certificate as proof of their authority to transfer or sell the decedent's assets. If you need an appointment, please click below to schedule at our main office in New Brunswick. What is a Letter of Authority and how to I get one? Us or calling 732-745-4086 for assistance. 20. This authorization allows the. The restriction can be found in the Judgment and sometimes the Letters of Guardianship. South Plainfield residents only.