The Executor must locate and review all estate planning documents. Because estate planning documents may interact, it is crucial to locate all of them as soon as possible. Documents to look for may include a Will, trust agreement, life insurance policies, and/or Letter of Instruction among others. An original copy of the Will must be located in order to initiate the probate process which will officially grant you the authority you need to act as the Executor of the estate. An Executor must also ensure that assets are identified, located and secured because he/she is ultimately responsible for them throughout the probate process.