Do siblings have rights to see or have copies of the will and or disbursements happening as executor.?

Once a will has been filed for probate it becomes a public record. You can go to the probate court and request the file. Then you can review the will, make copies if you wish, and monitor the actions of the executor.

The executor is required to file an inventory with the court listing all of the real and personal property belonging to the decedent at the time of death. After the property is distributed according to the will the executor must file an account for the court, detailing where all that property went.