No order may be entered under any part of Sections 35-1-520 to 35-1-570 or Section 35-1-1475 except the first sentence of Section 35-1-550 without (a) appropriate prior notice to the applicant or registrant, as well as the employer or prospective employer if the applicant or registrant is an agent or investment adviser representative, (b) opportunity for hearing, and (c) written findings of fact and conclusions of law.