NEW YORK · CO-OPS · PROPRIETARY LEASES · NOT HOA

IgeraFincas for New York Co-op & Condo Management

New York's co-op market is unlike any other in the United States. Shareholders hold proprietary leases, not deeds. The Business Corporation Law — not an HOA act — governs the corporation. IgeraFincas is the AI assistant built for this unique structure, pre-loaded with BCL, NYC Local Law 97, the Martin Act, and your proprietary lease.

No credit card required Operational in 48 hours BCL & LL97 pre-loaded

New York: the world's largest co-op market

350K+

co-op apartments in NYC — the world's largest co-op market

75%

of Manhattan apartments are co-ops, not condos

LL97

NYC Local Law 97 carbon caps create capital assessment pressure on most co-ops

100%

of co-op unit transfers require board approval

New York City's co-op market is unlike anything else in the United States. With 350,000 co-op apartments in the five boroughs — 75% of Manhattan's total residential market — co-op management companies deal with a governance structure that has no parallel in any other state. Shareholders do not own property. They own shares in a corporation and hold a proprietary lease. The Business Corporation Law, not an HOA act, governs the entity. Management companies in Manhattan (10023, 10028), Brooklyn (11201, 11215), and the Upper East Side (10021) face a completely different compliance landscape than their peers in California or Florida.

New York co-op law IgeraFincas masters

Four critical areas where NYC co-op shareholder queries are most concentrated

Co-ops Are Corporations — Not HOAs (BCL)

New York co-ops are corporations organized under the Business Corporation Law (BCL Article 5). Shareholders do not hold deeds. Instead, they hold:

  • Shares in the cooperative corporation (allocated per unit by size)
  • A proprietary lease — typically 99 years, auto-renewing — granting the right to occupy

IgeraFincas treats the proprietary lease as the primary governing document — equivalent to CC&Rs in a traditional HOA — and answers shareholder questions by citing specific paragraphs of the lease alongside BCL.

Maintenance Fees — Mortgage + Taxes Included

Unlike HOA dues that cover only operating costs, NYC co-op maintenance fees include three components bundled together:

MORTGAGE

Each shareholder's proportionate share of the building's blanket underlying mortgage. When the building refinances at a lower rate or pays off the mortgage, monthly maintenance drops. When it borrows to fund capital projects, maintenance rises.

TAX

Each shareholder's proportionate share of the building's real estate taxes. Under 26 U.S.C. §216, shareholders can deduct their allocated share of building mortgage interest and property taxes on their federal income tax return.

NYC Local Law 97 — Carbon Emissions & Capital Assessments

Local Law 97 (enacted 2019, effective 2024) sets carbon emission caps for New York City buildings over 25,000 square feet. Most NYC co-ops with 50 or more units are directly affected. The penalties are significant:

  • Fine: $268 per ton of CO² emitted above the building's annual cap
  • Typical remediation: HVAC replacement, LED retrofits, building envelope insulation
  • Capital assessments: $500–$5,000 per shareholder for non-compliant buildings

IgeraFincas explains LL97 obligations based on your building's size, occupancy class, and fuel type, and answers shareholder questions about special assessment justifications.

Board Approval, Business Judgment & The Martin Act

New York co-op boards have remarkably broad authority to approve or reject buyers:

BJR

The business judgment rule (Pullman standard) protects boards that reject buyers without stating reasons, provided the decision was not discriminatory and was made in good faith.

GBL §352

The Martin Act (GBL §352-eeee): the co-op's offering plan (the “Black Book”) must be filed with the NY Attorney General's office. IgeraFincas can answer questions about what the offering plan requires and what the board must disclose.

IgeraFincas is pre-loaded with New York BCL Article 5, NYC Local Law 97, the Martin Act (GBL §352-eeee), NYC Human Rights Law, and the New York State Human Rights Law. Upload your proprietary lease and house rules and it answers shareholder queries from both statute and your building's specific documents simultaneously.

How IgeraFincas works for NYC co-op and condo managers

1

Upload proprietary lease and house rules

Upload your co-op's proprietary lease, house rules, bylaws, and offering plan sections. IgeraFincas indexes them alongside BCL and NYC local law within 48 hours.

2

BCL and NYC local law applied automatically

IgeraFincas applies BCL for corporate governance questions, NYC Local Law 97 for emissions and capital assessment queries, and the Martin Act for offering plan disclosure issues — automatically, based on the query topic.

3

Shareholders ask 24/7 — cited answers from their lease

Via web widget or WhatsApp. Shareholders in Upper West Side (10025), Park Slope (11215), and Jackson Heights (11372) ask about subletting, flip taxes, LL97 assessments, and board approval rights — and get answers citing their specific proprietary lease paragraph.

4

Complex queries escalated with full context

Board rejection challenges, Fair Housing discrimination claims, and LL97 capital assessment disputes are flagged and routed to your team with a complete context summary — so you respond prepared, not cold.

An NYC co-op subletting query, answered in real time

A shareholder in a Park Avenue (10028) pre-war co-op asks about subletting their apartment for 18 months while working abroad. IgeraFincas reads the proprietary lease subletting clause, explains the board approval process, identifies the applicable sublet fee, and cites the relevant paragraph number — in under 3 seconds.

NYC co-op management companies using IgeraFincas deflect 71% of routine shareholder inquiries. Subletting, flip tax, and LL97 assessment questions are the top three query categories — IgeraFincas resolves all three without staff involvement.

NYC co-op queries IgeraFincas resolves

Common queries from Manhattan, Brooklyn, Queens, the Bronx, and co-op communities across New York City

SUBLET

Subletting approval — proprietary lease

“I want to sublet my apartment for 2 years. What does the board require and what fee will I pay?”

IgeraFincas reads the proprietary lease subletting clause, identifies the application requirements (board approval, forms, fees), the sublet fee formula (often 10–20% of profit or monthly rent), and the maximum permitted sublet period in the uploaded governing documents. [Proprietary Lease §12 + House Rules ¶18]

LL97

Local Law 97 capital assessment

“The board passed a $3,200 special assessment for LL97 compliance. Is this legitimate?”

Explains that LL97 carbon cap fines ($268/ton over cap) can generate significant special assessments for HVAC replacements and other capital work. IgeraFincas reviews the proprietary lease authorization for capital assessments and the board's LL97 compliance notice to confirm the assessment basis. [NYC LL97 + Proprietary Lease §4]

FLIP TAX

Flip tax — sale transfer fee calculation

“I'm selling my apartment for $1.85M. How much flip tax do I owe to the co-op?”

IgeraFincas reads the flip tax formula from the proprietary lease or bylaws (commonly 1–3% of sale price, or a per-share amount), calculates the exact amount owed, and explains when it is due in the closing timeline for a Manhattan or Brooklyn sale. [Proprietary Lease §9(b) flip tax clause]

MAINTENANCE

Maintenance fee breakdown — tax deductibility

“How much of my $4,200 monthly maintenance is tax-deductible?”

Explains that shareholders may deduct their allocated share of the building's mortgage interest and real property taxes under 26 U.S.C. §216. The deductible portion depends on the co-op's annual financial statement. IgeraFincas explains the concept and directs the shareholder to their IRS Form 1099-INT provided annually by the co-op. [26 U.S.C. §216 + Annual Financial Statement]

Frequently asked questions — New York

What is the difference between a co-op and a condo in New York City?

In a New York City co-op, you do not own real property. Instead, you own shares in a cooperative corporation and hold a proprietary lease granting the right to occupy a specific unit. The corporation owns the building. This means co-op buyers need board approval for any transfer, cannot sell to anyone the board rejects, and pay monthly maintenance that includes a proportionate share of the building's underlying mortgage and real estate taxes. In a condo, you own the unit itself (recorded deed) plus a percentage interest in common elements. Condo boards can exercise a right of first refusal but generally cannot block sales to third parties the way co-op boards can. Condo common charges do not include a mortgage or tax component.

Can an NYC co-op board reject a buyer without giving a reason?

Yes, in most cases. The business judgment rule (as articulated in Pullman v. 100 N. 3rd Street Realty and similar cases) protects co-op boards that reject buyers without disclosing their reasons, as long as the rejection was made in good faith and in the interest of the corporation. However, the board cannot reject a buyer based on race, color, national origin, religion, sex, disability, familial status, or any other protected class under the federal Fair Housing Act (42 U.S.C. §3604), the New York State Human Rights Law, or the New York City Human Rights Law — which offers some of the broadest anti-discrimination protections in the country, including protections based on sexual orientation, gender identity, and source of income.

How does NYC Local Law 97 affect my co-op maintenance fees?

NYC Local Law 97 (2019) requires buildings over 25,000 square feet to meet carbon emission caps, with fines of $268 per ton of CO² above the cap starting in 2024. Stricter caps take effect in 2030. Most NYC co-ops with 50 or more units are affected. Buildings that exceed their cap face compounding annual fines, creating significant pressure on boards to invest in HVAC systems, LED lighting, and building insulation. These capital expenditures are typically funded through special assessments on shareholders, ranging from a few hundred dollars to several thousand dollars per unit depending on the building's size, fuel type (oil vs. gas vs. electric), and the extent of upgrades required. IgeraFincas explains the LL97 obligations specific to your building's occupancy class and answers shareholder questions about whether a proposed capital assessment is authorized by the proprietary lease.

What is a flip tax and is it standard in NYC co-ops?

A flip tax (formally called a transfer fee or resale fee) is a charge paid to the co-op corporation when a shareholder sells their apartment. It is authorized in the proprietary lease and is used to build the co-op's reserve fund without raising monthly maintenance. Flip taxes are extremely common — the majority of Manhattan co-ops have one. The formula varies by building: common structures include 1–3% of the gross sale price, a fixed dollar amount per share sold, or 10–20% of the seller's net profit. The flip tax amount must be disclosed in the offering plan (the “Black Book” filed with the NY Attorney General under the Martin Act) and in the proprietary lease. IgeraFincas can calculate the exact flip tax owed by reading the formula from your uploaded proprietary lease.

How do I request documents from my co-op board under New York law?

Under BCL §624, shareholders have the right to inspect the corporation's books and records, including financial statements, minutes of board and shareholder meetings, and the shareholder register, upon written demand. The corporation must respond within 5 business days. If the board refuses or ignores the request, the shareholder can file a special proceeding in New York Supreme Court under BCL §624(e) to compel production. Most proprietary leases also contain explicit document access provisions that may be broader than the BCL baseline. IgeraFincas can identify the specific document request rights in your building's proprietary lease and explain the process for submitting a formal request to the managing agent.

Start today. BCL and Local Law 97 pre-loaded.

  • Free 14-day trial — no credit card required
  • BCL Article 5 and NYC Local Law 97 pre-loaded
  • Martin Act offering plan framework and NYC Human Rights Law pre-loaded
  • Operational in 48 hours after proprietary lease and house rules upload
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