So one listener sends orders to guild halls thousands of miles away, so hopefully if nothing happens in transit to the letter they will kill the orders for a kill that someone wanted weeks, if not months ago. That makes perfect sense. (Sarcasm)
If you're going to be snarky, make sure your syntax isn't a garbled mess first.
But if you're willing to go the route of secret murder, moreover, to trouble yourself with trafficking with Eldritch Boogies and Mad Hatchetmen, I'd say there's a solid chance that you're totally committed to seeing someone dead. There's no
getting over it, with this mentality, no cooling off.
See, that's really the point of the Black Sacrament: to show that you're serious about death.
Also, Tamriel, being pre-industrial, even with the near-ubiquity of magic, still runs at a slower pace than our world.