In February 2025, O’Connor expanded its property tax services with a new office in New York with Frank Grampone leading the office. Frank Grampone works with commercial property owners in NYC and residential property owners in Nassau and Suffolk Counties. With a wealth of experience in New York property tax services, Frank offers expert advice … Read more
Property Tax Reduction Blog
⏰Cook Co Tax Bills Due March 4th
Property taxes are due soon for Cook County property owners! Steer clear of late fees and penalties by keeping up to date on all property tax deadlines. Be Aware of Deadlines & Avoid Late Fees For Cook County property owners, your 2024 property taxes are due in two installments. The Cook County Treasurer has already sent out … Read more
Illinois Assessors Can Increase Your Property Value without Individual Notice
If you are a property owner in Illinois, you should make it a habit to check your property values every year, even if you are not in a reassessment year. The reason for this is because in Illinois, property values can be adjusted for taxes in two very different ways. These methods of adjustment are … Read more
Is it Legal to Raise Property Taxes 20-Fold in One Year?
The owner of the 3-unit triplex at 1633 S Avers Avenue (Chicago IL 60623) saw their Cook County property tax assessment increase 2,080% between 2023 and 2024. This is not a typo. The Cook County Assessor increased their opinion of the value of this property from $16,050 ($5,350/unit) to $350,000 ($116,667/unit). How can the value … Read more
From Modest to Monstrous: Property Value Soars by Unbelievable 2,797%
The Cook County Assessor raised the market value of 626 N Long Avenue, Chicago by 2,797% in just one year! This is for a duplex in West Chicago Township.