[Gundam-Dude]

I actually recommend doing the opposite of trying to book your hotel asap after the con ends because in reality AN 2017 is way too far into the future for hotels to properly gauge what kind of rooms are available for reservations. I would actually wait a couple days, maybe even weeks, before trying because basically all the hotels will say that they are fully booked, even though that's not true in the slightest due to the aforementioned.

Unless you actually have the patience to try calling the hotel(s) every single day until they give you an actual response in regards to reservations.