The answer really depends on your budget and what you want to do while in the DMV area. The National Harbor is near to Darren and Scoey's but the average hotel room is $300+/night. If you want to be near the venue and not to far from the bride and groom, stay at one of the recommended hotels. There are also great vacation rentals in DC and Old Town Alexandria.
Whatever works for you is our first answer. That said, we would it if out of town guests could arrive Wednesday, 5/13/26 and depart Sunday on the redeye or later. This will give us an opportunity to properly host you :-) !