§ 9.5. Endorsement of Roll.

After the board shall have completed its review of the assessment roll, a majority of its members shall immediately endorse thereon and sign a statement to the effect that same is the assessment roll of the City for the year in which it has been prepared. The omission of such endorsement shall not affect the validity of such roll. Upon completion of the roll, the same shall be the assessment roll of the City for county, school and city taxes and for any other taxes on real or personal property that may be authorized by law and shall be conclusively presumed by all courts and tribunals to be valid and shall not be set aside except for cause allowed for by law.