Here is a list of some pet friendly hotels in the Seattle area. Although these hotels say they accept pets with a deposit, it is a good idea to call ahead of time and make sure they are ok with rats:
Homewood Suites DOES allow pets:
Hotel Nexus DOES allow pets:
Comfort Inn DOES allow pets:
The following hotels do not allow pets, but are close to the show hall:
Ballard Inn does NOT allow pets:
(but it’s the closest to the show venue and it’s sort of a cool “getaway” type hotel for folks making a holiday of it.)