- Council of New York Co-Operatives and Condominiums: www.cnyc.com
- New York State Unified Court System: www.nycourts.gov
- NYC: HPD: www.nyc.gov/hpd
- NYC: DOB: www.nyc.gov/html/dob/html/home/home.shtml
- DHCR: www.nyshcr.org
- New York State Department of State: www.dos.ny.gov
- ACRIS: www.nyc.gov/acris