My boyfriend's mother recently and unexpectedly passed away. They were estranged and had not spoken for over a year, but prior to that she had asked him to be the executor of her will. We don't know if she ever actually created a will, or if he was indeed named as executor. How can we go about finding out? She did not have a regular attorney that we know of, and was also estranged from the other relatives we know so they are in the dark as much as we are. She lived and died in California in case that matters, and just to add another potential complication, was a registered member of an Indian tribe and lived on a reservation (meaning, in that case are wills a tribal matter, or still a state or county thing). Thanks to anyone who can offer some advice!