If you are named as an executor in a will, and the deceased owned a house or other land or significant property, you will need to apply to the Supreme Court of South Australia for a Grant of Probate. Contact our probate lawyer Adelaide! Probate is the legal process by which a will is proven as the last will and testament of a deceased person and gives the executor named in the Grant the right (and obligation) to deal with the assets and liabilities of the deceased in accordance with the terms of the will.