Automated City Register Information System (ACRIS)
Resource for looking up recorded documents in Manhattan, Brooklyn, Queens and the Bronx

New York City's Property Information System
Resource for looking up Tax History and current Tax Bills

Property Tax Benefit Information
Resource for looking up Tax Abatements and Exemptions

NYC Buildings
Resource for Certificate of Occupancy Search, Complaints, Violations, Jobs/Filings, Department of Finance Building Classification, SRO status

NYCity Map
Resource for looking up landmark designations

NYC Planning
Resource for looking up current zoning designations

Real Estate Finance Bureau
Resource for looking up current Offering Plan filings

NYC Housing Preservation & Development
Resource for looking up Building Registration, Complaint history with HPD, Tenant Harassment Report, Open Violations, Litigation/Case Status

New York State Unified Court System
Attorney Registration and Discipline Search 

Department of State, Division of Corporations, State Records & UCC
Business Entity Search

Department of Finance Building Classification
Building Classification

Nassau Country Land Records Viewer
​Assessment roll data, district information, tax maps, property photographs, past taxes, tax rates, exemptions with amounts and comparable sales.