In addition to the other requirements set forth in this Part, each mutual company shall also submit to the division, upon completion of the public informational meeting required under section 1750.5 of this Part, satisfactory evidence of (a) acceptance by the office of the Attorney General of the State of New York of the filing of the offering plan pertaining to the proposed transfer from the mutual company to a private cooperative or condominium corporation; and (b) approval by two thirds of the shareholders of record of the counted on the basis of one vote per dwelling unit.