In the discretion of the commissioner, the certificate of authority, insurance producer appointments and licenses, rates, and other items in existence at the time an insurer licensed to transact the business of insurance in this state transfers its corporate domicile to this state or another state by merger, consolidation, or any other lawful method, continue in effect upon the transfer if the insurer remains duly qualified to transact the business of insurance in this state. An outstanding policy of a transferring insurer remains in effect and does not need to be endorsed as to the new name of the company or its new location unless so ordered by the commissioner. A transferring insurer shall file new policy forms with the commissioner on or before the effective date of the transfer, but may use existing forms with appropriate endorsements as approved by the commissioner. A transferring insurer shall notify the commissioner of the details of the proposed transfer and shall file promptly any resulting amendments to corporate documents filed or required to be filed with the commissioner.