That is one of their jobs. They have to notify all the beneficiaries.
The executor must make a reasonable and diligent search for property. They cannot be "required" to find unknown property. The heirs and relatives should assist by notifying the executor of any property they have knowledge of.
The living trust has a trustee, not an executor. The will is a separate process and you would be the executor.
The court will appoint an executor either an attorney or a bank. The cost will come out of the estate.
Humans' farthest relatives are believed to be other primates, such as gorillas, orangutans, and chimpanzees. These species share a common ancestor with humans, although the evolutionary paths diverged millions of years ago.
The executor has no power while the person is living. Until they are appointed by the court, they have no power.
You can't be the executor of an estate if the individual is still living. Property transfers are done the same as any other time.
No.
Yes, that is very common. The spouse is typically the executor of the estate.
If your grandmother is still living, you can't. If she is deceased, the executor of the will is required to notify you if you are in the will. If there is no will, and your parents are deceased, then you should contact the probate court and/or executor.
Order (primates)
In general, a person living with your dad does not have the legal authority to prevent his children from being appointed as executor of his estate. The appointment of an executor is typically determined by the person's will or by law if there is no will. Family members are usually given priority in being appointed as executors. It is advisable to consult with a legal professional for specific advice regarding this situation.
A trust doesn't have an executor. It has a trustee. The trustee manages the trust according to the terms of the trust.