While we do not have an official hotel room block, here are some hotels in the area that are good options.
This hotel is about 35 minutes south of PDX and 35 minutes west of the wedding venue.
This hotel is about 30 minutes away from the wedding venue, further east of Portland into the Gorge. Sometimes their website doesn't show all available rooms, so if you don't have luck online, try a phone call.
This hotel is in between the airport and the wedding venue, about about 15-20 minutes away from each.