Friday Harbor Dental Office For Sale***Beautiful Friday Harbor, San Juan Island Dental Office For Sale. Newer build-out and equipment. Plumbed for 6 ops and equipped with 3 chairs. This is a once in a life time opportunity to open the office of your dreams on San Juan Island. This is a fully turn-key dental office ready to run. There are no patients associated with the office. The building is for lease and possibly for sale.