What Happens When Your Business Partner Won't Play Fair? NY LLC and Partnership Disputes in 2026

You built a business with someone you trusted. Now you can't agree on anything — or worse, your partner is freezing you out, refusing to share the books, or blocking every decision the company needs to survive. If you're a New York business owner caught in that situation right now, you're not alone. And you have more legal options than you might think.

New York courts have been busy in 2025 and 2026 reshaping the rules on LLC disputes, partnership breakups, and business divorces. Here's what the latest decisions mean for you.

What Is a "Business Divorce" in New York?

A business divorce is exactly what it sounds like: two or more co-owners of a company legally separating their interests. It happens in LLCs, general partnerships, limited partnerships, closely held corporations, and family businesses. Like a marital divorce, a business divorce can be civil and planned — or it can be a full-scale legal war.

Common triggers include:

• One partner refuses to share financial records or pay out profits

• A 50/50 deadlock where no one can make a decision

• One owner is engaging in self-dealing, looting the business, or competing against it secretly

• A founder wants to retire or cash out and the other owner won't agree on a buyout price

• The relationship has broken down so badly that daily operations are paralyzed

Whatever the cause, the first thing a court looks at in a New York LLC dispute is your operating agreement. If you don't have one — or if yours is silent on the issue — you'll be at the mercy of default rules under New York LLC Law § 702.

Can You Force the Dissolution of a New York LLC?

Yes, but the bar is high. Under LLC Law § 702, a court can dissolve your LLC when it is "not reasonably practicable to carry on the business" in conformity with the articles of organization or operating agreement. The leading case interpreting this standard is Matter of 1545 Ocean Avenue, LLC (2d Dep't 2010), which held that you must prove either that management is unable or unwilling to allow the company's stated purpose to be achieved, or that continuing the business is financially unfeasible.

That standard got a major update in January 2025 when the New York Appellate Division, Third Department issued its decision in Amici v. Mazza, 2025 NY Slip Op 00259 (3d Dep't Jan. 16, 2025).

Amici v. Mazza: When Deadlock Forces a Dissolution

Tom Amici and Ed Mazza were partners for nearly 35 years, co-owning a portfolio of residential rental properties in the Ithaca area. Amici handled day-to-day operations and maintenance; Mazza — an attorney — handled the business and legal side. In 2012, Mazza formed "Mazza and Amici, LLC" unilaterally, signing the articles of organization himself as sole organizer. The company was set up as manager-managed, but no manager was ever appointed, and no operating agreement was ever signed.

By 2021, Amici was 73 years old and in declining health. He wanted to retire and get his share of the business. Mazza refused to negotiate. Amici sued for dissolution under LLC Law § 702 and for breach of fiduciary duty.

The Third Department became the first appellate department in New York to hold that deadlock can independently justify judicial dissolution. Because neither party had authority to act under the manager-managed structure (no manager was ever named, no operating agreement was signed), the court found it was not reasonably practicable for the LLC to carry on. Critically, the court went further and ordered dissolution outright — even though Amici had never filed a cross-motion for summary judgment. The ruling was a landmark win for the minority member in a deadlocked LLC.

The takeaway for you: if you are trapped in a 50/50 LLC with no operating agreement and no functioning management structure, the courts may now be willing to dissolve the company and force a resolution even without years of additional litigation.

Can an Operating Agreement Block You From Ever Dissolving the LLC?

This is one of the most contested questions in New York business law right now, and the answer shifted in 2025. In TZ Vista, LLC v. Helmer, 2025 NY Slip Op 00694 (2d Dep't Feb. 5, 2025), the Appellate Division, Second Department enforced an operating agreement provision in which a member had "irrevocably waived" the right to sue for dissolution.

This was the first time a New York appellate court enforced such a broad anti-dissolution waiver. Prior case law had generally treated these provisions as void against public policy. The TZ Vista decision hasn't fully settled the issue — courts in other departments have not yet ruled on identical facts — but if you signed an operating agreement with an anti-dissolution clause, you need to speak with a lawyer before assuming you can get out.

This is exactly why it matters to have a commercial litigation attorney review your operating agreement before you sign it, and again if a dispute is brewing. We previously broke down three operating agreement traps that cost New York business owners millions — the anti-dissolution clause is among the most dangerous if you don't understand its implications.

What Happens When Your Partner Uses Text Messages to Block Your Claims?

One of the most troubling decisions of early 2026 involves a New York business partner who used WhatsApp messages to defeat his co-owner's lawsuit. In JAK Advisors, LLC v. Bauer, 2026 NY Slip Op 00055 (1st Dep't Jan. 8, 2026), the First Department unanimously affirmed dismissal of a 50/50 partner's claims for breach of fiduciary duty, fraud, and dissolution — based on incomplete WhatsApp text exchanges.

Jason Kesselman and Jason Bauer had built a business together. Bauer controlled the partnership's bank account. After a dispute, Bauer sent Kesselman a payment and claimed in text messages that it settled everything. Kesselman sued, alleging the payment was not a settlement but a partial distribution. The trial court — and then the First Department — treated the WhatsApp messages as "documentary evidence" sufficient to refute all of Kesselman's claims under CPLR 3211(a)(1).

Legal commentators strongly criticized the ruling. Appellant's counsel argued the decision "creates dangerous new loopholes for partners who have exclusive access to the partnership bank account" — enabling a controlling partner to use informal texts to lock in a settlement without formal documentation. As of this writing, a motion for reargument is pending.

The lesson: if you're in a business dispute with a partner who controls the finances, do not treat informal messages as a substitute for a formal settlement agreement. And if your partner sends you a payment claiming it's a final settlement, get legal advice before you cash it.

What If Your New York Partnership Just Falls Apart?

New York general partnership law operates on a fundamentally different principle than LLC law. Under New York Partnership Law § 62, a general partner can dissolve a partnership at will, at any time. No one can be forced to remain in business with a partner against their will.

The Second Department reaffirmed this principle in Rozof v. Rozof, 2025 NY Slip Op 07309 (2d Dep't Dec. 24, 2025), clarifying that a partner's actions seeking judicial supervision after dissolution were consistent with winding-up — not the creation of a new partnership. Even if a written contract purports to prevent dissolution, a general partner retains the statutory right to walk away, though they may owe damages for doing so wrongfully.

The timing and method of how you exit a partnership matters enormously. Acting without legal guidance can expose you to significant damages claims even when you technically have the right to leave.

Home Improvement Contractor Disputes: Know Your Rights in New York

Not all commercial disputes are between business partners. If you're a homeowner or commercial property owner in New York City or Long Island, disputes with contractors are one of the most common sources of litigation — and one of the most frustrating.

Under New York General Business Law § 771, every home improvement contract over $500 must be in writing, signed by all parties, and must include the contractor's license number, an approximate start and completion date, a description of the work, a mechanic's lien notice, and an escrow or bond requirement for deposits. A contractor who fails to comply with these requirements may not be able to enforce the contract — and if they used fraudulent written statements to get you to sign, you may be entitled to actual damages, a $500 civil penalty, and attorney's fees.

Key facts New York homeowners often don't know:

• An unlicensed contractor in NYC, Nassau, Suffolk, Westchester, Putnam, or Rockland counties generally cannot sue you for payment, even if the work was done

• You have three business days to cancel a home improvement contract — in writing

• All deposits must go into escrow; if your contractor used your deposit on another job, they may face criminal liability

• If a contractor walks off the job or does defective work, they can face a mechanic's lien action — but so can you against them

Home improvement fraud has consistently ranked among the top consumer complaints filed with the New York Attorney General. If you paid a contractor who disappeared or failed to finish, you may have a strong claim for damages and attorney's fees. See also our overview of LLC dissolution rights in New York for related guidance on protecting your business interests.

Frequently Asked Questions

Can I dissolve my New York LLC if my partner and I can't agree on anything?

Yes, potentially. Under LLC Law § 702, a court can dissolve your LLC when it is "not reasonably practicable" to carry on the business. After Amici v. Mazza (3d Dep't 2025), deadlock between 50/50 members in a manager-managed LLC with no operating agreement or appointed manager can independently support a dissolution order. The strength of your case depends heavily on your specific operating agreement and structure.

What should I do if my business partner is hiding financial records or refusing to pay distributions?

You should consult a commercial litigation attorney immediately. In New York, LLC members generally have the right to inspect books and records under LLC Law § 1102. If your partner is withholding records or diverting profits, you may have claims for breach of fiduciary duty, an accounting, and — depending on the facts — dissolution. Delay can be costly: evidence disappears, and your partner may be moving assets.

Can a text message or WhatsApp conversation be used against me in a New York business dispute?

Yes, and the risk is real. After JAK Advisors, LLC v. Bauer (1st Dep't Jan. 8, 2026), New York courts have shown willingness to treat informal digital communications as binding documentary evidence capable of defeating breach of fiduciary duty and dissolution claims. Before you send any messages about finances, settlements, or the business relationship, speak with a lawyer.

What can I do if a home improvement contractor in New York took my deposit and didn't finish the job?

You have several options. Under General Business Law § 771, if the contractor violated the written contract requirements, you may be able to void the contract. If they were unlicensed, they generally cannot enforce the contract for payment. You can file a complaint with the NYC Department of Consumer and Worker Protection, the NY Attorney General, or sue in civil court for damages, civil penalties, and attorney's fees. A lawyer can help you identify which route — or combination — makes the most sense for your situation.

What to Do If You're in a Business Dispute Right Now

Whether you're fighting with an LLC co-owner, trying to exit a partnership gone wrong, or dealing with a contractor who took your money and disappeared — the single most important thing you can do right now is get legal counsel before you take any further action. Every message you send, every payment you accept, and every agreement you sign can affect your legal position.

New York commercial litigation is not a place to improvise. The cases decided in 2025 and 2026 make clear that courts will hold parties to what their operating agreements say, what their text messages suggest, and what their conduct implies. You need someone in your corner who knows how these disputes play out — from demand letters through trial if necessary.

If you or someone you know is caught in an LLC dispute, partnership breakup, business divorce, or contractor fraud in New York, the team at Yassi Law PC is ready to help. Call us today at 646-992-2138 for a consultation.

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Written by Reza Yassi | LinkedIn — founding attorney at Yassi Law PC, a New York litigation firm handling commercial disputes, personal injury, and business divorce matters in New York City and Long Island.

Disclaimer: This blog post is for informational purposes only and does not constitute legal advice. Reading this post does not create an attorney-client relationship. Every case is different. If you have a specific legal matter, please consult a qualified attorney.