Run a quick reality check. NYC values income property by capitalizing net income, so whether your bill is beatable comes down to your own numbers, not what the building down the block pays. BRIC rebuilds the city's math against yours and tells you plainly whether there's a case worth filing and roughly what it could be worth. If there isn't one, you will hear that too, and you will still see the credit and abatement programs most owners never get told about.
Add your NOPV figures and your real income and expenses, then reconstruct. We'll tell you whether the city over-valued you, and we'll tell you if it didn't.