Property tax records for St Tammany parish are open for public review. They will stay open until August 29. Anyone wishing to contest their property tax need to do so in this time frame and in writing. You can go to either of two offices in Slidell or Covington.
More information can be obtained from the assessors website.
Property values for the most part are down across the entire parish. If you fell your taxes are to high it might be worth a trip to the assessors office.