This guide has general information about what happens to someone's property, bills, and debts after they pass away. This area of law is called probate.When a death without a will occurs, intestate succession laws may dictate who, if anyone, has a right to the property of the deceased. If you die without a valid will, the probate court will distribute your assets in accordance with California's intestate succession law. Most bank accounts can pass directly to beneficiaries, without the need for probate or the court's intervention. Letters of administration are required for handling the affairs of the deceased who died without a will, otherwise known as dying "intestate". If there is no will or trust, additional forms will need to be filled out. Letter of instruction. These are: Valid death certificate, and the final will. Whether you have written a will or established a trust, you may wish to provide detailed instructions on how your last wishes should be carried out.