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Map of New York eviction risk by county, statewide average 8.4 out of 10
State brief·Updated May 29, 2026

New York Eviction Risk: Very High

New York spans 1,285 covered cities across 60 counties, with a statewide composite of 9.8/10 (very high). Scores range 4.8 to 9.8 across cities, and the share of income spent on rent, political climate, and statute weighting drive most of the variance.

Counties60all tracked
Cities1,285covered
Census tracts5.4kscored
Population16.4Mstate total
Highest county9.8Kings County
Lowest county4.8Suffolk County
Statewide rent capLocalNYC + opt-in counties

New York's statewide 8.4/10 sits at the top of its own range, which runs from a 4 floor to 8.4; among counties, Kings County leads at 7.8. That places New York 2nd of 51 states for landlord eviction risk.

How New York ranks nationally

Lower number means more extreme, where #1 is the most
Eviction risk score
Very High
#1 of 51 states 9.8 / 10
Eviction risk score, 100th percentileBottomTop
#1 of 51 states for landlord eviction risk.
Cost of living
Very High
#5 of 51 states 107.9 index
Cost of living, 92nd percentileBottomTop
#5 of 51 states on overall cost of living (7.9% more expensive than the U.S. avg).
Housing services cost
High
#8 of 51 states 122.2 index
Housing services cost, 86th percentileBottomTop
#8 of 51 states on housing services (22.2% more expensive than the U.S. avg).
Income spent on rent
High
#11 of 51 states 31.7% of income
Income spent on rent, 80th percentileBottomTop
#11 of 51 states on % of income spent on rent.
Eviction filing rate
Very Low
#20 of 23 tracked states 4.96% of renter HHs
Eviction filing rate, 14th percentileBottomTop
#20 of 23 tracked states on recent eviction filing rate.

Landlord guides for New York

State-specific playbooks
New York Eviction Costs →
Filing fees, attorney fees, lost rent, sheriff lockout
New York Eviction Process →
Step-by-step timeline, notices, statute cites
New York Rent Control →
Statewide caps, local ordinances, just-cause
New York Tenant Screening →
Five-point protocol, legal rules, protected classes
New York Tenant Protections →
Just cause, retaliation, habitability, entry
All 60 counties
Sorted by Eviction Risk Score
Map view
CountyPopulationRisk% of income on rentAvg rent
01 Kings County Pop 8.48M · 31.3% income · $1,821 rent 8.48M 9.8 31.3% $1,821
02 Westchester County Pop 817,854 · 32.5% income · $2,119 rent 817,854 9.0 32.5% $2,119
03 Bronx County Pop 11,763 · 32.9% income · $2,565 rent 11,763 8.7 32.9% $2,565
04 Albany County Pop 196,068 · 28.9% income · $1,307 rent 196,068 8.4 28.9% $1,307
05 Dutchess County Pop 131,442 · 32.2% income · $1,497 rent 131,442 8.4 32.2% $1,497
06 Columbia County Pop 20,165 · 36.4% income · $1,249 rent 20,165 8.1 36.4% $1,249
07 Cortland County Pop 26,604 · 31.4% income · $983 rent 26,604 8.1 31.4% $983
08 Oswego County Pop 52,402 · 31.2% income · $980 rent 52,402 8.1 31.2% $980
09 Tompkins County Pop 66,632 · 39.5% income · $1,476 rent 66,632 8.1 39.5% $1,476
10 Clinton County Pop 39,145 · 29.8% income · $1,006 rent 39,145 8.1 29.8% $1,006
11 Cayuga County Pop 38,636 · 30.2% income · $936 rent 38,636 8.1 30.2% $936
12 Schenectady County Pop 136,262 · 31.4% income · $1,264 rent 136,262 8.0 31.4% $1,264
13 Sullivan County Pop 32,407 · 32.3% income · $1,165 rent 32,407 7.9 32.3% $1,165
14 Orange County Pop 263,318 · 36.8% income · $1,765 rent 263,318 7.9 36.8% $1,765
15 Chemung County Pop 59,443 · 31.4% income · $1,050 rent 59,443 7.9 31.4% $1,050
16 Rensselaer County Pop 92,325 · 30.4% income · $1,209 rent 92,325 7.9 30.4% $1,209
17 Erie County Pop 637,080 · 30.4% income · $1,057 rent 637,080 7.9 30.4% $1,057
18 Ulster County Pop 92,814 · 34.3% income · $1,546 rent 92,814 7.9 34.3% $1,546
19 Chenango County Pop 15,900 · 27.7% income · $840 rent 15,900 7.8 27.7% $840
20 Fulton County Pop 26,439 · 25.2% income · $919 rent 26,439 7.8 25.2% $919
21 Rockland County Pop 331,827 · 39.3% income · $1,951 rent 331,827 7.8 39.3% $1,951
22 Montgomery County Pop 29,247 · 29.1% income · $910 rent 29,247 7.8 29.1% $910
23 Chautauqua County Pop 74,955 · 31.2% income · $813 rent 74,955 7.8 31.2% $813
24 Oneida County Pop 138,709 · 29.3% income · $957 rent 138,709 7.8 29.3% $957
25 Queens County Pop 3,174 · 28.1% income · $2,592 rent 3,174 7.8 28.1% $2,592
26 Delaware County Pop 13,654 · 30.2% income · $879 rent 13,654 7.8 30.2% $879
27 Schuyler County Pop 4,512 · 27.4% income · $817 rent 4,512 7.8 27.4% $817
28 Niagara County Pop 128,183 · 30.7% income · $869 rent 128,183 7.7 30.7% $869
29 Seneca County Pop 13,028 · 26.9% income · $962 rent 13,028 7.7 26.9% $962
30 Madison County Pop 33,258 · 28.8% income · $957 rent 33,258 7.7 28.8% $957
CountyPopulationRisk% of income on rentAvg rent
31 Livingston County Pop 35,161 · 36.6% income · $935 rent 35,161 7.7 36.6% $935
32 Cattaraugus County Pop 38,761 · 29.3% income · $757 rent 38,761 7.7 29.3% $757
33 Essex County Pop 12,617 · 36.9% income · $872 rent 12,617 7.6 36.9% $872
34 Warren County Pop 40,221 · 29.7% income · $1,197 rent 40,221 7.6 29.7% $1,197
35 Otsego County Pop 28,504 · 29.1% income · $996 rent 28,504 7.6 29.1% $996
36 Jefferson County Pop 68,730 · 29.5% income · $1,131 rent 68,730 7.6 29.5% $1,131
37 Genesee County Pop 24,752 · 26.8% income · $896 rent 24,752 7.6 26.8% $896
38 St. Lawrence County Pop 55,412 · 33.5% income · $803 rent 55,412 7.6 33.5% $803
39 Greene County Pop 21,118 · 30.0% income · $1,164 rent 21,118 7.6 30.0% $1,164
40 Washington County Pop 21,590 · 33.5% income · $973 rent 21,590 7.5 33.5% $973
41 Schoharie County Pop 10,002 · 30.4% income · $908 rent 10,002 7.5 30.4% $908
42 Ontario County Pop 37,908 · 26.7% income · $1,014 rent 37,908 7.5 26.7% $1,014
43 Steuben County Pop 48,301 · 27.4% income · $1,086 rent 48,301 7.4 27.4% $1,086
44 Franklin County Pop 16,696 · 23.4% income · $808 rent 16,696 7.4 23.4% $808
45 Broome County Pop 103,291 · 32.5% income · $914 rent 103,291 7.3 32.5% $914
46 Wayne County Pop 39,085 · 32.7% income · $929 rent 39,085 7.3 32.7% $929
47 Allegany County Pop 22,839 · 29.7% income · $782 rent 22,839 7.3 29.7% $782
48 Nassau County Pop 1.37M · 32.0% income · $2,413 rent 1.37M 7.3 32.0% $2,413
49 Onondaga County Pop 251,064 · 31.0% income · $1,079 rent 251,064 7.2 31.0% $1,079
50 Saratoga County Pop 63,745 · 25.0% income · $1,301 rent 63,745 7.2 25.0% $1,301
51 Tioga County Pop 18,247 · 32.8% income · $956 rent 18,247 7.2 32.8% $956
52 Yates County Pop 9,026 · 26.2% income · $689 rent 9,026 7.2 26.2% $689
53 Herkimer County Pop 30,501 · 25.3% income · $796 rent 30,501 7.2 25.3% $796
54 Putnam County Pop 40,353 · 36.2% income · $1,659 rent 40,353 7.1 36.2% $1,659
55 Orleans County Pop 13,974 · 24.7% income · $877 rent 13,974 7.0 24.7% $877
56 Monroe County Pop 387,941 · 32.0% income · $1,140 rent 387,941 7.0 32.0% $1,140
57 Wyoming County Pop 14,174 · 29.0% income · $810 rent 14,174 7.0 29.0% $810
58 Hamilton County Pop 1,706 · 25.0% income · $943 rent 1,706 7.0 25.0% $943
59 Lewis County Pop 8,530 · 26.8% income · $802 rent 8,530 6.9 26.8% $802
60 Suffolk County Pop 1.52M · 34.8% income · $2,326 rent 1.52M 6.0 34.8% $2,326
Highest-risk cities in New York
Sorted by Eviction Risk Score · highest first
Map view
CityPopulationRisk score
01 New York Pop 8,483,844 8,483,844 9.8
02 Mount Vernon Pop 72,427 72,427 9.7
03 New Rochelle Pop 82,769 82,769 9.6
04 Port Chester Pop 31,102 31,102 9.6
05 Sleepy Hollow Pop 10,887 10,887 9.6
06 Yonkers Pop 209,978 209,978 9.5
07 White Plains Pop 60,666 60,666 9.5
08 Harrison Pop 29,961 29,961 9.5
09 Kingston Pop 23,911 23,911 9.5
10 Tarrytown Pop 11,784 11,784 9.5
11 Dobbs Ferry Pop 11,443 11,443 9.5
12 Mount Kisco Pop 10,737 10,737 9.4
13 Larchmont Pop 6,567 6,567 9.4
14 Hastings-on-Hudson Pop 8,434 8,434 9.3
15 Eastchester Pop 20,491 20,491 9.2
16 Great Neck Plaza Pop 7,593 7,593 9.2
17 Pleasantville Pop 7,371 7,371 9.2
18 Cedarhurst Pop 7,320 7,320 9.1
19 Irvington Pop 6,531 6,531 9.1
20 Poughkeepsie Pop 31,958 31,958 9.0
21 Great Neck Pop 11,087 11,087 9.0
22 Croton-on-Hudson Pop 8,202 8,202 9.0
23 Long Beach Pop 34,756 34,756 8.9
24 Spring Valley Pop 33,192 33,192 8.9

Statewide heatmap

Click any city for the breakdown

Cost of living in New York

BEA Regional Price Parities 2024 · US=100

New York is the 5th most expensive of 51 states overall (7.9% more expensive than the U.S. average). For housing services, it ranks #8 of 51 states, the single biggest driver of rent-to-income ratio statewide.

vs. neighbors & U.S. average
New York all-items price level vs. peer states (% diff from U.S. average)NY: +8%+8%NYNJ: +9%+9%NJRI: +2%+2%RIPA: -2%-2%PAMA: +6%+6%MAUS: avgavgUSU.S. avg (0%)
By basket of goods
New York price levels by basket (% diff from U.S. average)All items: +8%+8%All itemsGoods: +7%+7%GoodsHousing: +22%+22%HousingUtilities: +34%+34%UtilitiesU.S. avg (0%)

Peer states

Same Census region, closest by Eviction Risk Score
NJ
New Jersey eviction risk
7.7
/ 10 · High
Rent-to-income ratio 33.3%
RI
Rhode Island eviction risk
7.1
/ 10 · Elevated
Rent-to-income ratio 35.0%
PA
Pennsylvania eviction risk
6.3
/ 10 · Elevated
Rent-to-income ratio 29.1%
MA
Massachusetts eviction risk
6.2
/ 10 · Elevated
Rent-to-income ratio 33.0%

New York eviction rules at a glance

Quick-reference card for landlords and tenants
Notice requirement
See state statute; varies by lease type
Court filing fee
See county clerk; varies
Statewide rent cap
Local · NYC + opt-in counties
Landlord-risk tier
Very High · Eviction Risk Score 9.8/10
Statewide rules

What every New York landlord operates under.

New York eviction risk is not for the faint of heart, nor for the under-capitalized landlord. The state operates with a clear pro-tenant bias, reflected in its complex legal framework and significant tenant protections. If you're evaluating New York eviction risk for expansion, holding, or exit, understand this: the operating environment here is challenging, costly, and time-consuming when an eviction becomes necessary.

Our data pegs New York's average city eviction-risk score at 8.4/10, placing it firmly in the "elevated" tier. This isn't a market where you can afford to cut corners or operate without a deep understanding of local and state statutes. Across 1285 cities analyzed, the consistency of very high risk, particularly in major metros, signals a need for extreme diligence. Expect higher operating costs and longer resolution times compared to more landlord-friendly states. This is a market where preventative screening and ironclad lease agreements are not optional, they are essential.

New York's legal framework for landlords

The primary statutes governing landlord-tenant relations in New York are N.Y. RPL § 226 et seq. and RPAPL § 711. These codes establish the baseline for everything from lease agreements to eviction procedures. New York does not have statewide just-cause eviction requirements, meaning you can terminate a tenancy without cause, provided proper notice is given and no discrimination or retaliation is involved. However, several cities, notably New York City, do have local just-cause ordinances. You must know the specific rules of your operating municipality.

Non-payment of rent requires a 14-day pay-or-quit notice. This is a strict deadline; if rent and fees are not paid within that window, you can proceed with filing for eviction. For no-cause terminations, a 30-day notice is generally required. This period can extend depending on the length of tenancy and specific local ordinances. Always verify the precise notice period for your situation and jurisdiction.

New York has statewide source-of-income protections. This means you cannot discriminate against applicants based on how they pay their rent, whether it's through a Section 8 voucher, disability benefits, or other legal forms of income. Ignoring this protection is a direct path to a fair housing complaint and significant penalties. Fair housing oversight falls under the NY State Division of Human Rights.

Security deposit rules are also strict. The cap is set at 1.00 month's rent statewide. Crucially, interest is required on held deposits. This is a common compliance trap for landlords. You must track and pay out this interest. The return deadline for a security deposit is 14 days after the tenant vacates. Deductions must be itemized meticulously. For more on this, consult our New York security deposit rules.

Where landlords have it easiest vs. hardest in New York

New York's eviction risk isn't uniform. The major population centers consistently present higher risk for landlords. New York City itself carries a score of 7.8/10, making it a high-friction environment. Buffalo mirrors this at 7.8/10. Yonkers stands out as particularly challenging, scoring 8.4/10, making it the highest-risk city among the top metros. Rochester (7.6/10), Syracuse (7.2/10), and Albany (7.6/10) also sit firmly in the very high risk category. New Rochelle is another high-risk metro at 7.9/10. These scores reflect not just legal frameworks, but also court backlogs, tenant advocacy, and local enforcement postures.

Looking at the absolute highest-risk cities, Yonkers (8.4/10) leads the pack, followed by Mount Vernon (8.1/10), Manorhaven (8/10), and Ithaca (8/10). Even a specific institution, Rochester Institute of Technology, scores high at 7.9/10, likely due to student-specific protections or advocacy. Operating in these areas demands heightened awareness and contingency planning for potential legal challenges.

Conversely, lower-risk areas do exist, though they are typically smaller, more rural communities. Tribes Hill scores 4/10, Eagle Bay and Thendara both 4.2/10, Town Line 4.2/10, and Chadwicks 4.3/10. These areas generally have less tenant advocacy, simpler court processes, and fewer localized ordinances complicating matters. If you're looking for easier operations, these outliers might be considered, but they come with trade-offs in terms of market size and tenant pool. For a broader view, check our All-US eviction risk heatmap.

The eviction process step-by-step in New York

The eviction process in New York is methodical and can be lengthy. It begins with serving the proper notice. For non-payment, this is a 14-day pay-or-quit. This notice must be served correctly, typically by personal service, substituted service, or conspicuous service, and proof of service retained. Do not skip this step or serve it incorrectly; it will be grounds for dismissal.

If the tenant fails to comply after the notice period expires, you can file a "Notice of Petition" and "Petition" with the appropriate housing or civil court. This formally initiates the legal eviction process. The court will then issue a summons, which must be served on the tenant, again, following strict legal requirements. This step can take 5-10 days from filing to service.

A hearing date will be set, typically 7-14 days after the petition is filed and served. At the hearing, both landlord and tenant present their cases. Be prepared with all documentation: lease, notices, payment ledgers, communication records. If the court rules in your favor, a "Judgment of Possession" is issued. This judgment formally declares you are entitled to possession of the property.

After the judgment, you must obtain a "Warrant of Eviction." This is the court order that authorizes a sheriff or marshal to physically remove the tenant. The warrant must also be served on the tenant, typically providing them with a 14-day notice to vacate. This notice is non-negotiable. After this 14-day period, if the tenant still has not left, the sheriff or marshal can schedule the physical lockout. The entire process, from notice to lockout, can easily take 60-90 days, often longer in high-volume courts or with tenant legal aid involvement. For detailed steps, see our New York eviction process step-by-step.

What landlords actually pay (and how long it takes)

Eviction costs in New York are significant. Expect court filing fees to range from $45 to $300, depending on the court and county. Process server fees typically run $75-$200 per attempt. The most substantial cost, however, is legal representation. Retaining an attorney for an uncontested eviction can cost $1,500-$3,000. If the case is contested, involves multiple hearings, or tenant legal aid, these costs can quickly escalate to $5,000-$10,000 or more. Sheriff/marshal fees for the final lockout are typically $100-$300.

Beyond direct legal costs, consider the lost rent. If an eviction takes 2-3 months, that's 2-3 months of lost income, plus potential damages and turnover costs. In a market like New York City, this can mean thousands of dollars per month in lost revenue. The total financial impact of an eviction, including legal fees, court costs, and lost rent, can easily exceed $5,000-$10,000 for a relatively straightforward case, and significantly more for complex ones. For more specific breakdowns, refer to our New York eviction costs guide.

New York screening, lease, and deposit playbook

Screening: In New York, you can screen for credit history, criminal background (with specific limitations on older records or non-convictions), employment verification, and previous landlord references. You cannot discriminate based on source of income, as this is a protected class statewide. Be careful with blanket exclusions; "no pets" is generally permissible, but service animals are always protected. Your screening criteria must be applied consistently to all applicants to avoid fair housing complaints. Implement a clear, written screening protocol and stick to it.

Lease Clauses: Your New York lease needs to be robust. Include clauses explicitly stating the 14-day pay-or-quit notice period for non-payment. Clearly define late fees (ensure they are reasonable and legally permissible, usually 5% of monthly rent or $50, whichever is less). Detail maintenance responsibilities, especially for tenant-caused damage. Specify rules for alterations, subletting (where allowed), and guest policies. Include an explicit clause about the tenant's responsibility for all utilities if applicable. Given the pro-tenant environment, clarity in the lease can prevent many disputes. Consider adding an arbitration clause if legally permissible in your jurisdiction, though these can be challenged.

Deposit Return: The security deposit cap is one month's rent. You must place the deposit in an interest-bearing account and provide the tenant with the bank name and address. Interest earned must be paid to the tenant. Upon move-out, you have 14 days to return the deposit or provide an itemized statement of deductions. Deductions are typically limited to unpaid rent, damages beyond normal wear and tear, and cleaning costs if the unit is left significantly dirtier than move-in condition. Take extensive move-in and move-out photos/videos to document property condition. Failure to return the deposit or provide an itemized statement within 14 days can result in the tenant suing for double the deposit amount.

Common landlord mistakes in New York

1. Failing to provide proper notice: Many landlords trip up on the precise timing and method of serving eviction notices. Even a minor error can lead to a case dismissal, forcing you to restart the entire process and incur additional costs and delays.

2. Illegal self-help evictions: Changing locks, shutting off utilities, or removing a tenant's belongings are strictly prohibited in New York. These actions can result in severe penalties, including fines and liability for damages, and will certainly lead to a court ordering the tenant back into possession.

3. Mishandling security deposits: Not placing deposits in an interest-bearing account, failing to provide account information, not paying interest, or missing the 14-day return deadline are common mistakes. These can lead to costly lawsuits where you may owe double the deposit.

4. Ignoring source-of-income protections: Refusing to rent to tenants who use vouchers or other legal forms of assistance is a direct violation of statewide fair housing laws. This will result in a complaint with the NY State Division of Human Rights and potential fines.

5. Inadequate screening: In a high-risk state, thorough screening is critical. Skipping background checks, credit checks, or reference calls can lead to problematic tenancies that are difficult and expensive to resolve. For more proactive measures, review our New York tenant protections.

6. Poor record-keeping: Lack of organized documentation for lease agreements, rent payments, notices, communications, and property condition will severely weaken your case in court. Digital and physical backups are essential.

7. Not understanding local ordinances: While New York has state laws, many cities, especially New York City, have additional, stricter regulations, including rent control (see New York rent control rules) and just-cause eviction. Operating without knowledge of these local rules is a significant liability.

New York eviction FAQs

Can I evict a tenant for non-payment of rent in New York?

Yes, you can. You must first provide a 14-day pay-or-quit notice. If the tenant does not pay within that period, you can proceed with filing an eviction lawsuit.

Is New York a "just-cause" eviction state?

No, there is no statewide just-cause eviction requirement. However, specific localities, most notably New York City, do have local just-cause ordinances that you must adhere to.

How long does an eviction typically take in New York?

From serving the initial notice to a final lockout by a sheriff, an eviction in New York typically takes 60-90 days, but can easily extend longer, especially in major metro areas or if the case is contested.

What are the rules for security deposits in New York?

The security deposit is capped at one month's rent. It must be held in an interest-bearing account, and the interest must be paid to the tenant. The deposit, or an itemized list of deductions, must be returned within 14 days of the tenant vacating.

Can I refuse to rent to someone with a Section 8 voucher in New York?

No. New York has statewide source-of-income protection. Refusing to rent to someone based on their lawful source of income, including Section 8 vouchers, is illegal discrimination.

What are the penalties for an illegal lockout in New York?

Illegal lockouts (self-help evictions) are strictly prohibited. Penalties can include fines, damages awarded to the tenant, and a court order to restore the tenant to possession of the property. Do not attempt this.

Across 1,285 cities the state averages 9.8/10, but the spread is the story. NYC scores 8-9 (rent stabilization on 1M+ units, free housing court counsel, 6-12 month eviction timelines). Long Island and Westchester score 7-8. Buffalo, Rochester, and Syracuse score 6-7. The Southern Tier and North Country score 4-5. RPL 226-c notice requirements scale with tenancy length: 30 days under a year, 60 days under two years, 90 days for longer. No-fault evictions are effectively dead in Good Cause cities. Why this matters for risk modeling: a 10% rent increase in NYC triggers a Good Cause defense; the same increase in Binghamton eviction risk does not.

New York ranks 2nd of 51 states for landlord risk, and it sits well above every state in its Northeast peer group. Its 8.4/10 towers over New Jersey at 7.03, Massachusetts at 6.58, and Rhode Island at 6.27, with Connecticut at 5.94 and Pennsylvania at 5.88 friendlier still.

For a landlord choosing between these states, New York eviction risk carries materially heavier regulatory exposure: statewide just cause, protected source of income, locally permitted rent control, and contested timelines reaching 210 days. Pennsylvania, the lowest-scoring peer at 5.88, offers the most operating latitude of the group.

Frequently asked

Frequently asked questions about New York eviction risk

Q1

Is New York landlord-friendly?

No. New York scores 8.4/10 on landlord risk, a High rating, and ranks 2nd of 51 states nationally. Statewide just cause is required and source of income is a protected class, so it is one of the toughest states to operate in.

Q2

How long does an eviction take in New York?

An uncontested eviction typically runs 30 to 90 days, while a contested case can take 90 to 210 days. The process moves through serving the right notice, filing the petition, a return date and settlement conference, and finally trial, judgment, and a warrant of eviction.

Q3

Is rent control allowed in New York?

Yes. New York does not preempt local rent control, and the rent cap formula varies by locality. Landlords should confirm whether a property falls under local rent regulation before underwriting.

Q4

What notice do I have to give to evict for nonpayment in New York?

Nonpayment of rent requires a 14-day notice under RPAPL § 711(2). A material lease violation requires a 10-day notice under RPAPL § 711(1).

Q5

How much does it cost to evict a tenant in New York?

Court filing fees run $45 to $210, sheriff lockout fees run $50 to $200, and attorney fees typically run $1,000 to $4,000 depending on whether the case is contested.

Q6

Does New York require just cause to evict?

Yes. Just cause is required to evict in New York, and step one of the process is confirming Good Cause coverage. For holdover cases the notice period scales with tenancy length under RPL § 226-c: 30 days under one year, 60 days for one to two years, and 90 days for two years or more.

Q7

Can a landlord refuse Section 8 or a housing voucher in New York?

No. Source of income is a protected class in New York, enforced by the NY State Division of Human Rights, so landlords cannot reject applicants solely because they pay rent with a voucher or other lawful income source.

Q9

What is the security deposit and habitability law in New York?

Habitability is governed by the implied warranty under RPL § 235-b, and retaliation against tenants is barred by RPL § 223-b. The core landlord-tenant statutes are N.Y. RPL § 226 et seq. and RPAPL § 711.