Generally no but there are exceptions where appearances from parties are required. Speak with the attorney you hire regarding your appearance.

They can be inherited by you if they were specifically given to you. If the will says "everything to Jane Doe" and does not specifically mention...

Call your attorney and have this conversation with them. If Petition for Final Distribution has not been approved, you have time, but once it is...

Your parents should make an appointment with a new attorney to review the documents and make sure they are complete and effective. If so, they...

Your mother can complete and submit an Affidavit for Collection of Personal Property with a certified Death Certificate to the bank.

Contact an attorney in PA to search the court records and if not found, write a demand letter.

Never sign something you don't understand and based on the facts you describe, your brother and sister have no claim and you should be very careful...

Hire an attorney to sue her for the stock and dividends.

You can object but your reasons need to be more than bias. You are going through a divorce, anyone appointed for her should be "bias" toward her...

Start by asking family. You can also check court and property records in the country where she died.