Formal/Semi-formal It is not a jeans and tennis shoes type of venue, but you do you boo boo, we don’t care!
Both. The ceremony and dinner will be outside, the cocktail hour and reception will be indoor.
If you booked with the Hampton Inn (the block of rooms), then yes, it is. It is also walking distance from the Marriott AC hotel and Hotel Congress. The venue is in downtown Tucson.
Look at your invitation or the details on this site :) Stillwell House: https://www.stillwellhouse.com/