the taxing agency/department has an appeal process. you can probably get the process and application online. usually there is a specified time of the year to file an appeal. the time period will different for each city, township and village.
You need to nget and work with a buyer'a agent. There is no cost to you as a buyer,Obviously you are a first time buyer and will have a lot of questions. I can help youfind a home and answer your questions.
Yes-taxes and interest are deductable . Call me 702-994-4849