Wiktionary
prep.phr. (context legal English) by means of a legal entitlement, rather than through extenuating circumstances.
Usage examples of "as of right".
Neither are the magistrates for the most part (as men loath to displease their neighbours for their one year's dignity) so careful in their offices as of right and duty they should be.
Then the door of her own chamber opened, after a round, confident rap, and Simon entered as of right.
And then the neighbour, who had been standing near the door, led Mma Makutsi away so that Sister Banjule could ensure in private the last dignities for a man whose life had not amounted to much, but who now received, as of right, the unconditional love of one who knew how to give just that.
President, I venture to say that the situation is resolved as of right now.
So you an' Miz Tregarde are on special assignment as of right now.