Any person compelled to appear in person or who voluntarily appears before the agency shall be accorded the right to be accompanied, represented and advised by counsel. In a proceeding before the agency, every party or person shall be accorded the right to appear in person or by or with counsel. Nothing in this section shall be construed either to grant or to deny to any person who is not a lawyer the right to appear for or represent others before the agency. In accordance with section 166 of the Executive Law, any such representative will file a notice of appearance with the administrative law judge on forms provided by the Department of State and state whether a fee is being paid therefor.