ACRIS: The New York City official database of all recorded real property documents.
Kings County Clerk's Office: View filings of cases before the New York Supreme Court of Kings County (Brooklyn).
Department of Buildings: View building permits, building violations, certificates of occupancy and more.
Housing Department: View housing violations, building registration, HPD housing forms, emergency repairs, etc.
NYCServ: View and pay real estate taxes, water / sewer charges, traffic tickets, and ECB violations.
Zoning Maps: New York City zoning maps.
OASIS NYC: Really cool city maps and property data.
Law of New York State: Complete digest of the laws of the State of New York.
Division of Corporations: Check corporate names and registered agents / addresses.
State License Search: Verify the license of your appraiser, real estate broker, home inspector, etc.
E-Courts of New York: Future court appearances and information in many pending state court actions.
Property tax photos from 1940: Order photographs of your home or property taken between 1939 - 1940 by the City of New York.
Nassau County Assessor's Office: View property information in Nassau County including maps, real estate taxes and building records.
Obtain an EIN: Apply online for an employer identification number from the IRS and receive it instantly.
Calculate title charges: Calculate mortgage tax, transfer tax and title insurance charges.