If this Black person has died. And Harry really is a boy then should the goblins be able to figure this out and who gets the Black inheritance Draco or Harry? Would the goblins send both boys a letter saying to come to the bank for will reading? Hope they might be able to help Harry.
Author's response
As it turns out, Sirius is innocent and still the heir, if you remember from canon - but whether or not they figure it out is another matter... Thanks for the review!