No person, firm or corporation who undertakes the preparation of (i) any tax return required pursuant to this title or (ii) a federal income or an estate tax return required pursuant to federal law, for or without compensation, shall sell, dispose of or otherwise disclose, for the purpose of solicitation by mail or otherwise, the name or address of the person for whom such return is prepared, or disclose, for the purpose of solicitation by mail or otherwise, any information given by the person in the preparation of such return, without the written consent of the person requesting the preparation of such return. Violators of this section shall be guilty of a Class 2 misdemeanor, and each such disclosure shall constitute a separate offense.