The assessment roll shall be reported to the lake board by the assessing official of the local unit or units of government initiating the proceeding and filed in the office of the clerk of each local unit of government to be affected. Before confirming the assessment roll, the lake board shall appoint a time and place when it will meet and review the assessment roll and hear any objections to the assessment roll, and shall publish notice of the hearing and the filing of the assessment roll twice prior to the hearing in a newspaper of general circulation in each local unit of government to be affected, the first publication to be at least 10 days before the hearing. Notice of the hearing shall also be given in accordance with Act No. 162 of the Public Acts of 1962, being sections 211.741 to 211.746 of the Michigan Compiled Laws. The hearing may be adjourned from time to time without further notice. Any person or local unit of government objecting to the assessment roll shall file his or her objection in writing with the chairperson before the close of the hearing or within such further time period as the lake board may grant. After the hearing, the lake board may confirm the special assessment roll as reported to it or as amended or corrected by it, may refer it back to the assessing officials for revision, or may annul it and direct a new roll to be made. When a special assessment roll has been confirmed, the clerk of each local unit of government shall endorse on the assessment roll the date of the confirmation. After confirmation, the special assessment roll and all assessments on the assessment roll shall be final and conclusive unless attacked in a court of competent jurisdiction within 30 days after notice of confirmation has been published in the same manner as the notice of hearing.