A single duty of reasonable care.
Under Basso v. Miller, 40 N.Y.2d 233 (1976), every property owner in New York owes a single duty of reasonable care under the circumstances to everyone who lawfully enters the property — invited customer, tenant, friend, delivery worker, repair contractor. The old categories that protected landowners from liability to certain visitors were abandoned. The standard is uniform: reasonable care.
To recover, you generally have to prove one of three things:
1 — Owner Created the Condition
The property owner (or their employee/agent) created the dangerous condition that caused your fall.
2 — Actual Notice
The owner knew about the condition and failed to fix it.
3 — Constructive Notice
The condition existed long enough that a reasonable owner exercising reasonable care would have discovered and fixed it. This is where most cases live or die.