There is no sim free model for the iPhone X available at pre order so the guy above wouldn’t be able to. So he would have to buy one from the carrier selection from Apple.com and he wants wants Verizon model. So therefore he will need a Verizon account even if you plan to buy outright it requires carrier account info. Only way around this is buy it directly from Apple Store near you.
Oh wow I didn't notice that the sim free model is not a chose for the iPhone X!! Thanks for pointing that out.