(B) To attempt by mediation to resolve any housing discrimination complaint over which it has jurisdiction and to recommend to all appropriate governmental Agencies, federal, commonwealth or local, such action as it feels will resolve any such complaint or in the case of any housing discrimination investigation which would be aided thereby, to hold hearings, summons witnesses, compel their attendance, administer oaths, take the testimony of any person under oath and in connection therewith to require the production of any evidence relating to any matter in questions or under the investigation before the Commission. The power to summon witnesses as defined herein shall be limited to those powers and procedures as set forth in M.G.L. Chapter 233, Section 8. At any hearing before the Commission, or any Committee thereof, a witness shall have the right to be advised and represented by counsel present during any hearings;