There are lots of cute Airbnb options in Calais, Woodbury, Marshfield, East Montpelier, and other surrounding areas. If you're more of a hotel person, try the Capitol Plaza or the Inn at Montpelier (in — you guessed it — Montpelier), the Comfort Inn & Suites (Berlin), and numerous hotels a bit further afield in Waterbury and Stowe. There are plenty of local B&Bs of the non-Air variety, too.
Yes! Just let us know how many and their ages when you RSVP, so we know what level of Lord of the Flies situation we should plan for.
Sadly, we Vermonters have a long history of messing with beautiful French words and town names. (For examples, see Mont-PEEL-yer and BEAR-ee.) So, it's not Cal-AY. It's CAL-us, like rough skin on the soles of your feet. Good one, Vermont.