Someone whose instruction or order cannot be disobeyed without strict consequences. Subordinates of a such people or individuals must have total obedience.
Mr. president is a willer; you must be ever willing to do his will or else, you're fired.
Describes how da process of probate may appear to someone unfamiliar wif it; said ordeal maybe indeed seem to him like totally "uncharted territory".
Heirs of an estate would do well to hire a competent attorney so datda process of acquiring and/or disposing of said property will not seem so much like a total willderness.