What You Should Know about Residential Real Estate Law in New York City

New York law requires landlords to maintain residential units in compliance with the Housing Maintenance Code and the Implied Warranty of Habitability. This means the property must have adequate heat, hot and cold running water, functioning plumbing, and a roof free from leaks. Courts interpret these standards broadly, and violations can expose a landlord to rent abatement claims, where tenants reduce or withhold rent to compel repairs. From a practitioner's perspective, documentation of repair requests and responses becomes critical because courts will examine the timeline and reasonableness of the landlord's remedial efforts. Failure to maintain these conditions can result in violations issued by the Department of Housing Preservation and Development, which may appear on the property's record and affect financing or sale transactions.

Security deposits must be held in an interest-bearing account in a New York bank, and landlords must provide tenants with written notice of the account details within thirty days of receiving the deposit. When a tenancy ends, the landlord must return the full deposit plus accrued interest within thirty days, or provide an itemized accounting of deductions for damages beyond normal wear and tear. Violations of these deposit rules can expose landlords to statutory penalties of up to twice the wrongfully withheld amount plus attorney fees. Courts have held that even partial non-compliance with deposit procedures can trigger these penalties, making strict adherence to timing and documentation requirements crucial.

Before filing an eviction petition, a landlord must serve the tenant with proper notice of lease termination. For non-payment of rent, the notice period is typically three days; for lease violations, it is generally thirty days; and for lease expiration, it is at least thirty days before the lease ends. The notice must be in writing and served according to statutory methods, which include personal delivery, certified mail, or posting and mailing in certain circumstances. Courts strictly construe these notice requirements, and defective notice can defeat an entire eviction case regardless of the merits.

Once proper notice is served and the period expires, a landlord may file a summary eviction proceeding in the local Housing Court. In New York County Housing Court and similar tribunals across the city, the proceeding follows a structured calendar system where cases are scheduled for appearance before a judge. The burden rests with the landlord to prove compliance with all statutory prerequisites and the factual basis for eviction. If a tenant raises a counterclaim for uninhabitable conditions or other violations, the court may stay the eviction or reduce rent pending repairs, complicating the timeline and outcome. Documentation of the notice served, the reason for eviction, and any tenant communications should be preserved in writing because courts rely heavily on contemporaneous records to assess credibility and compliance.

Beyond eviction, landlords may face disputes with tenants over lease interpretation, damage claims, or alleged breach of the lease terms. These disputes may be resolved through real estate civil lawsuit procedures in Civil Court or through negotiation and settlement. Understanding when litigation is cost-effective and when alternative resolution may serve the landlord's interests requires careful evaluation of the claim amount, strength of evidence, and time commitment. Counsel can help assess whether a dispute is worth pursuing and what procedural steps will preserve the landlord's position.