Dispensary Law Seminar in Chicago - 420 College business model is what separates us from the rest. Unlike other “Cannabis Training Colleges or Institutes, we don’t take a California marijuana attorney to Illinois or Washington. When you come to a 420 College seminar, you meet local industry professionals like local marijuana attorneys, accountants and other industry professionals. Also, your fee of $250 covers 2 full days of consultations from industry professionals, free continuing education and most importantly friends in the industry. After your payment of the full enrollment fee, you may visit our workshops as much as you want and where ever we go, all for FREE!!! That is has been our business model since we started and it will not change.