I don't know if you are still looking and are willing to travel but there is a woman that owns a school in the San Francisco Bay Area. She even wrote the book on it. She was one of the authors of the latest ASA sailing manuals. Her classes are also fairly well prepared the ASA 104 is 3 days as opposed to a 2 day 103/104 combo.
You can make a vacation out of it and sail on the bay, maybe watch the America's Cup boats.