Direct answer
You need proof of a dangerous condition, that the property owner knew or should have known about it, and that it caused your injury. Strong evidence includes photos of the hazard, the incident report, witness names, medical records dated to the fall, and any prior complaint history showing the owner had notice.
In more detail
A New York slip-and-fall case turns on three elements: a dangerous condition, notice, and causation. Documenting all three within hours of the fall is what decides the case six months later when the defense lawyer is arguing nothing was wrong.
Photographs are the most undervalued evidence I see. Take pictures of the actual hazard before anyone cleans it up. Wet floor with no sign, the uneven step, the cracked tile, the sheet of black ice, the broken lighting. Photograph the surrounding area, the signage (or absence of it), and the shoes you were wearing. Multiple angles. Timestamps on. Video on the phone is even better than stills.
Get the incident report. Stores, building managers, and NYCHA offices are usually required to fill one out. Ask for a copy in writing, ideally by email, so you have a paper trail. Get names and phone numbers of every witness, including passersby who stopped to help. People are most cooperative the day it happened and harder to track down a year later.
Notice is the hardest element to prove and the one defendants attack first. Under New York law, the owner must have either created the hazard, had actual notice (a prior complaint, a prior fall, an internal email about the leak), or had constructive notice, meaning the condition existed long enough that they should have discovered it through reasonable inspection. The proof comes from 311 complaint records, prior incident reports, building maintenance logs, and surveillance video showing the condition was present for hours.
For NYC sidewalk falls specifically, NYC Administrative Code § 7-201 (the Pothole Law) generally requires prior written notice to the City for the specific defect before suit can proceed. NYC Administrative Code § 7-210 shifts liability to the abutting commercial or multi-family residential property owner rather than the City for most sidewalks. Identifying the right defendant early matters because each one has different deadlines, including the 90-day Notice of Claim under NY General Municipal Law § 50-e if the City is in the case. The general three-year statute under NY CPLR § 214(5) governs the underlying tort claim.
Treat your injuries the same day. ER records dated to the fall connect the dots between the hazard and the harm. A two-week treatment gap is the first thing the defense puts on the screen at deposition. Keep the shoes you were wearing in a bag; they are physical evidence and can rebut a "your soles were worn smooth" defense.
What I see in NYC cases
The cases I win are usually won in the first 48 hours, before the client even calls me. A client who handed me 14 phone photos, the store manager's name, two witness numbers, and an ER record from the same night is a client whose case settles. A client who tells me there was ice on the sidewalk but has no photo, no report, and saw a doctor three weeks later is a client I am working ten times harder for.
If you slipped on a NYCHA stairwell or a the utility grate cover, the notice records (311 complaints, prior repairs) are usually decisive. I pull them through FOIL early, before the City has a chance to clean the file.
Related questions
- Can I sue NYC for a sidewalk fall?
- How do I prove negligence in a New York personal injury case?
- What if my accident was partially my fault in New York?
Talk to Nick
Call or text (718) 261-0546. Spanish line: (718) 261-0546. Send the photos and the incident report through the contact form and we will go through them with you.
Compliance
This page is general legal information about New York premises liability and is not legal advice. No attorney-client relationship is formed by reading this page. Outcomes depend on the specific facts of each case. Prior results do not guarantee a similar outcome. Attorney advertising.