Mich. Comp. Laws § 254.55
Said county road commissioners shall speedily prepare a proposed special assessment district for such work, fixing it by resolution which shall embody a description of the boundaries thereof. They shall fix a time and place to hear objections to such proposed special assessment district and give notice thereof as hereinafter provided. Such notice shall set forth a description of the boundaries of the proposed special assessment district or the several parcels of land proposed to be assessed on account of such work, and the time and place of hearing. At this hearing all parties or persons interested shall be given an opportunity to present their objections, if any, to such proposed special assessment district. Notice of this hearing shall be given by the county road commissioners at least 10 days prior to such hearing by causing a notice thereof to be published at least once in each week for 2 weeks in succession in some newspaper published and of general circulation in such county, and by posting in public and conspicuous places 5 notices in each township, city and village within which the assessment district lies in whole or in part, and within the limits of such district, and also by posting such notice in any public place which may be provided in the county seat for the posting of public notices. At this hearing the county road commissioners shall, subject to the foregoing, make any changes in the specifications deemed by them advisable, without further notice or hearing, provided such changes do not increase the estimates more than 10 per cent. If they do increase the estimates more than 10 per cent then a new hearing shall be had and notice thereof given, as in the first instance. At said hearing the county road commissioners may alter the boundaries of the proposed assessment district: Provided, however, That if said district is enlarged or otherwise altered so as to embrace additional lands, hearing thereon after due notice shall be had as hereinbefore provided.
MCL 254.55