In order to prove negligence in New York, you (or your lawyer) have to prove that the person you’re suing (like the property owner or manager): *Owed you a duty of care (if you were a resident, guest, or customer, they had a duty to keep you safe on their property). *Breached that duty (failed to take reasonable care to keep you safe). *That breach caused damage (you were injured due to the person or company failing to keep you safe). *Injuries (or other damages) occurred as a result of the breach of duty.