How to Research a NYC Landlord Before You Sign a Lease

In NYC, you can know a remarkable amount about your future landlord before ever meeting them. Public records, city databases, and platforms like RenterBuzz give you access to violation histories, complaint records, court judgments, and real tenant reviews — all for free. Here is how to use them.

Start with RenterBuzz

Before anything else, search the building address on RenterBuzz. In one place you can see:

The registered building owner name
Open HPD violations by class (A, B, and C)
311 complaint history — heat, noise, rodents, plumbing and more — going back two years
Real reviews from current and former tenants with star ratings across 7 categories
Whether the building contains rent stabilized units
"Would you rent here again?" percentage from reviewers

A landlord with dozens of open Class C violations and a 2-star rating on "Landlord & Management" is telling you everything you need to know before you sign.

ACRIS: Look Up the Building Owner

NYC's Automated City Register Information System (ACRIS) at acris.nyc.gov is a free public database of all property records in New York City. You can look up:

✓Who legally owns the building (the deed holder)
✓When the current owner purchased it and what they paid
✓Any mortgages or liens on the property
✓Historical ownership going back decades
✓Whether the building is owned by an LLC (common) and who controls it

If the building is owned by an LLC, search the LLC name in the NYS Department of State business entity database (dos.ny.gov) to find who the principals are.

HPD Online: Check Violation History

HPD Online (hpdonline.hpdnyc.org) lets you search any building's full violation history — including closed violations. This is valuable because RenterBuzz shows open violations, but HPD Online shows everything including how quickly the landlord has historically resolved violations.

A landlord who resolves violations quickly is better than one who lets them pile up. Look at patterns over several years.

NYC Housing Court Records

eCourts (iapps.courts.state.ny.us) lets you search Housing Court records. Search your landlord's name or the building address to see:

How many eviction proceedings they have filed — and whether they are aggressive with evictions
Whether tenants have filed HP Actions (repair proceedings) against them
Any history of harassment proceedings

NYC's Worst Landlord Watchlist

The NYC Public Advocate maintains a "Worst Landlords Watchlist" of building owners with the most serious unresolved HPD violations. Search at pubadvocate.nyc.gov. If your prospective landlord is on this list — run.

Talk to Current Tenants

The most valuable research is also the simplest. Knock on a neighbor's door, catch someone in the lobby, or check RenterBuzz reviews from people who actually lived there. Ask:

✓How quickly does management respond to maintenance requests?
✓Have you had issues with heat or hot water?
✓Is the building quiet?
✓Have you had any problems getting issues resolved?
✓Would you recommend this building?

Red Flags in Your Research

Multiple Class C (immediately hazardous) violations with no correction dates
Dozens of 311 heat complaints every winter
High volume of eviction filings relative to building size
Building on the Worst Landlords Watchlist
Recent ownership change with sudden spike in violations
Reviews consistently mentioning ignored maintenance requests
Anonymous LLC ownership with no clear responsible party

Ready to research your next building?

Check HPD violations, 311 complaints, and real renter reviews on RenterBuzz.

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