Box in a suitcase

The Horse in Baltimore still has peanuts on the floor from 1775. It's a great bar. The mythology in Baltimore is that it was a nest of Patriots. Apparently, it was a post house on the road from old Baltimore town to Philadelphia (notwithstanding the fact that it is in the city now in Fells Point). When the King's post riders would come in, the boys at the bar would shout "f you and the horse you came in on"

Older than eight of his first ten,

Broadway Hotel in Madison, IN. 1834.

http://www.historicbroadwayhotel.com

Maybe he should break it up by area; New England, Mid-Atlantic, Southeast, Mid-west etc...

Jessop's tavern in New Castle Delaware was founded in 1724.

And this may not count, but the Deer Park Tavern in Newark DE was founded in 1747. It burnt down in 1848 but was immediately rebuilt in the same place.

What's the criteria?

Great list. Here's one to add. Red Fox Inn, Middleburg, VA 1728

http://www.redfox.com/

Not sure if this counts, as it was moved at some point from Hopkinton, NH (est. 1786) to Northampton, MA (est. 1927). Wiggins Tavern might be eligible for this list...
http://www.hotelnorthampton.com/about

The Waterfront Hotel in Baltimore MD was established in 1772. It is right down the block from The Horse You Came In On, #6 on your list.

I am trying to keep from reading trash like this. Man, you are sick. How did this came to your mind?