Women: Elegant, black tie dress. Earth tone, any color or combination of these colors: Nude, tan, olive, bronze, copper, burgundy. Men: Black tie attire. khaki color is fine pants. No Navy!
No, you can stay at any hotel you would like!
Uber/ ride share is easily accessible and transportation will be provided to the venue. If you would like to explore further you are more than welcome to rent a car using Turo (popular app for affordable fancy cars), or rent from the airport.