They will look to the wording of the will. It should specify whether that share goes into the general estate or to the deceased named person's estate or heirs.
You have to buy the property from someone. And the only person that can sell it is the executor.
Then someone else is and must follow the wishes of the deceased.
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.
Typically, the executor of the deceased person's estate will inform beneficiaries mentioned in the will. If you suspect that you may be mentioned in a will but have not been notified, you can inquire with the executor or contact the estate lawyer handling the matter. Additionally, wills are usually filed with the probate court, so you could check there to see if a will exists and if you are named as a beneficiary.
Certainly, they file a petition with the court. They usually require the agreement of the beneficiaries of the will to do so.
The court will look at the Will to determine if an alternate executor is named. If not, then the state probably has a list of people, in order, who should be named as administrator of the estate. Relationship to the deceased executor is irrelevant.
Certainly. Anyone can be named an executor of an estate, whether related to the deceased or not.
The executor can do that. It allows them to track the bills and claims against the estate.
The executor of the estate.
either by the deceased in the will or by the probate judge
Contact a valid executor to the will.
That is their responsibility.