I. Upon approval from the secretary of state, attorney general, and commissioner of the department of revenue administration under RSA 49-B:4-a, the charter commission shall submit to the municipal officers its final report, which shall include the full text and explanation of the proposed new charter, such comments as the commission deems desirable, an indication of the major differences between the current form of government and the proposed charter, and a written opinion by an attorney admitted to the bar of this state that the proposed charter is not in conflict with the constitution or the general laws. Minority reports, if filed, shall not exceed 1,000 words. The submission of the final report and minority reports, if any, shall be accomplished by the date indicated below: