Letters Testamentary serve as proof of the executor's authority to act on behalf of the estate. Without these letters, financial institutions, government agencies, and other entities may not recognize the executor's authority to access or manage the deceased person's assets.
Essentially, Letters Testamentary grant the executor the legal authority to manage the estate's affairs, including, paying debts, settling any claims, and petitioning the court to distribute assets.
It's important to note that the probate process in California can be complex and time-consuming. Executors are responsible for ensuring that all steps are followed correctly and that the estate is administered in accordance with state laws and the terms of the will. Seeking guidance from an experienced probate attorney can help simplify the process and ensure that everything is handled correctly.