G Grievance Form Instructions Find out more using the helpful links below. Read More www.tax.ny.gov/pit/property/contest/grievproced.htm N New York State Department of Taxation & Finance Get more information about New York State property taxes and assessments. Read More www.tax.ny.gov/pit/property/ O Onondaga County Welcome to the Onondaga County website! Read More (315) 435-2889 421 Montgomery Street, Syracuse, NY 13202 http://ongov.net/