§ 13. Disqualification of commissioner, officers and employees. Neither the commissioner, nor any officer or employee in the division of housing shall acquire any interest direct or indirect in a project or in any property then or thereafter included or planned to be included in a project, nor retain any interest direct or indirect in any property acquired subsequently to his appointment or employment which is later included or to his knowledge planned to be included in a project, nor shall he have any interest direct or indirect in any contract or proposed contract for materials or services to be furnished or used in connection with a project. If the commissioner or any officer or employee in the division of housing owns or controls an interest direct or indirect in any property included in any project, which was acquired prior to his appointment or employment, he shall disclose such interest and the date of acquisition thereof in writing to the governor or the commissioner, as the case may be, and such disclosure shall be entered in a special record of the division of housing kept for such purpose.