(1) To any minor or to any person who has been convicted of a felony and not pardoned (except that the commission may grant a license under this chapter to a corporation that has been convicted of a felony where the commission finds that the organization's officers and shareholders of twenty-five per cent or more of outstanding stock are fit and proper persons to have a license), or to any other person not deemed by the commission to be a fit and proper person to have a license;

(2) To a corporation the officers and directors of which, or any of them, would be disqualified under paragraph (1) of this section from obtaining the license individually, or a stockholder of which, owning or controlling twenty-five per cent or more of the outstanding capital stock would be disqualified under that paragraph from obtaining the license individually;

(3) Unless the applicant for a license or a renewal of a license, or in the case of a transfer of a license, both the transferor and the transferee, present to the issuing agency a signed certificate from the director of taxation [and from the Internal Revenue Service] showing that the applicant or the transferor and transferee do not owe the state [or federal governments] government any delinquent taxes, penalties, or interest; or

(4) To any applicant who has had any liquor license revoked less than two years previous to the date of the application for any like or other license under this chapter."