I've spoken to Bright Eyes at Glen Haven Elementary, but I haven't visited. It's less than 5 minutes away from Evergreen Montessori. Their 2-year-old class (starting at 24 months) has a 1:7 ratio, so I'm sure the 12-month-old class (what you'd be using) has a lower ratio. They're week-to-week with a 30-day notice for withdrawal, I believe. They didn't mention any annual contracts when I spoke to them. Their prices are fairly reasonable for the area, at least for 2-year-olds and preschool (I believe under $250/week for full-day in those classes). I don't know their 12-month-old prices. Here's their link:
http://www.brighteyeschildcare.com/#!glen-haven-elem/ciea
Good luck on your move!