Be sure to check your PRE (Principal Residence Exemption) on your Property Tax Assessment. It should be 100% if this is your principal residence, exempting you from School Operating Tax, or 0% if this is your second home and School Operating Taxes are owed.
State of Michigan Property Tax Site
Principle Residence Exemptions (PRE)
This information is used by the Property Tax Assessor to value properties and shows the land sales used to calculate property values and the ECF (Economic Condition Factor) for improved property.