Any taxing authority or the owner or holder of any tax bill or bills, filing any list or lists of unpaid tax bills with the collector, shall protect, defend, indemnify and hold the collector harmless from any and all loss, cost, damage, or expense which such collector may incur or for which he may be liable, by reason of any error, mistake, omission or any other act rendering the collector liable to suit made by such taxing authority or the owner or holder of any such tax bill in the preparation and filing of such list or lists of tax bills with the collector.