The good-guy guaranty, and what it actually costs you to walk away.

A good guy guaranty caps your personal liability at the date the tenant surrenders vacant possession of the premises. It does not cover the rest of the lease term. The cap is conditional. Written notice, the full notice period, rent current through surrender, no subtenants left behind, and keys returned. Satisfy every condition or the cap does not apply.

What does a good guy guaranty actually cap?

A good guy guaranty is a limited personal guaranty of a commercial lease. It makes you personally liable for rent and charges that accrue up to the date the tenant hands back vacant possession. It does not make you personally liable for rent accruing after that date. That date is the cap.

The trade is simple. You may hand the space back early without waiting for the landlord’s permission, and your personal exposure stops there. Leaving is still a breach of the lease by the tenant entity, and the entity stays liable for the rest of the term. The guaranty caps you, not the company.

New York construes these documents narrowly, and that rule works in your favor. A guaranty is interpreted in the strictest manner. You are not liable beyond the express terms of the guaranty you signed. Strict construction is not an escape hatch from clear language. An absolute and unconditional guaranty that waives your defenses is enforced as written.

Law: White Rose Food v Saleh, 99 N.Y.2d 589 (2003).

What conditions have to be satisfied before the cap applies?

The conditions in a good guy guaranty are the things you must do to earn the cap. Most guaranties require written notice of the surrender date, a stated notice period before that date, all rent current through the surrender date, the premises delivered free of subtenants and occupants, and the keys returned.

• Written notice. The guaranty requires notice in writing, delivered the way the guaranty says to the address the guaranty names. An email to a leasing agent is not notice where the guaranty requires certified mail to the owner.
• A stated notice period. The period is fixed in the guaranty. Thirty, sixty, and ninety days are all common. The clock runs from delivery of the notice to the surrender date named in it.
• Rent current through surrender. Everything accrued through the surrender date must be paid. Base rent, additional rent, real estate tax escalations, electricity, and late charges all count where the lease defines them as rent.
• Vacant possession. No subtenants. No licensees. No employees, no inventory, and no equipment left behind.
• Delivery of the keys. Keys, access cards, and alarm codes, delivered to the person the guaranty or the lease identifies.
• Condition of the premises. Some guaranties require broom-clean condition on the surrender date. Where they do, whether the premises met that standard is a question of fact, and a genuine dispute about it defeats the landlord’s motion for summary judgment.

Law: 213 W. 23rd St. LLC v Crunch Holdings LLC, 2025 NY Slip Op 03239 (1st Dept 2025).

Does the landlord have to accept my surrender before my liability stops?

No. Under New York’s controlling authority, a landlord’s written acceptance of the surrender is not required unless the guaranty itself says it is required. Where the guaranty conditions release on the tenant vacating and surrendering possession, the guarantor’s liability ends when the tenant actually does those things.

The Court of Appeals decided this in October 2025, reversing the First Department. The guaranty covered obligations through the latest date the tenant “shall have completely vacated and surrender[ed]” the premises, on not less than thirty days prior notice. The tenant gave notice, vacated, and delivered the keys to the building superintendent. The landlord then refused to accept the surrender and sued for the rent that accrued afterward.

The Court held the guarantor was released. Tying the guarantor’s liability to the landlord’s acceptance would render most of the guaranty’s language superfluous, including the thirty-day notice requirement and the words “completely vacated.” A contract is read so its terms do work, not so they are surplusage.

A landlord who refuses to sign an acceptance has not thereby extended your personal liability. He has only refused to sign.

To be clear, this turns on the text of your guaranty. Where the guaranty expressly incorporates the lease’s surrender provisions, or expressly conditions your release on the landlord’s written consent, that language governs. Where the guaranty does neither, the tenant’s obligation to obtain consent under the lease is not imputed to you under the guaranty.

Law: 1995 CAM LLC v West Side Advisors, LLC, 2025 NY Slip Op 05782 (Ct App Oct. 21, 2025); 213 W. 23rd St. LLC v Crunch Holdings LLC, 2025 NY Slip Op 03239 (1st Dept 2025).

What happens if I complied with most of the conditions but not all of them?

Partial compliance forfeits the cap. The conditions your guaranty imposes operate together as the price of the limitation, not as a menu. A guarantor who vacates on time but leaves rent unpaid has not satisfied the guaranty. A guarantor who returns the keys but never sent written notice has not satisfied it either.

Consider the short notice. Your guaranty requires ninety days written notice. You send the notice on March 1 and you vacate on May 1. You have given sixty-one days. The condition required ninety. Nothing in the guaranty makes sixty-one days good enough. The cap never took effect. What you owe then is whatever the guaranty says you owe when the conditions fail, and most are written to leave you liable for the balance of the term. Read that sentence yourself before you accept the landlord’s number.

The same arithmetic applies to arrears. Where the guaranty requires all rent to be current through the surrender date, an unpaid balance on that date is a failed condition. The landlord will lead with that argument.

Strict construction cuts both ways, and that is your leverage. A landlord may not add a condition the guaranty does not contain. Where your guaranty does not require the landlord’s written consent to surrender, he cannot import that requirement from the lease and declare your compliance incomplete.

The conditions are strict, and so is the list of them. A landlord who invents a condition your guaranty never contained is asking you to guarantee something you never signed.

How is a good guy guaranty different from a full guaranty of the lease?

A full guaranty of the lease makes you personally liable for every obligation of the tenant for the entire term, whether or not you vacate. A good guy guaranty makes you personally liable only through the surrender date. The difference between the two is the entire remaining term of the lease, which is usually the largest number in the case.

The title at the top of the page is not the test. A document captioned as a good guy guaranty sometimes contains full guaranty language. Read the operative paragraph, the one that begins with the words of obligation. It controls.

What does the landlord have to prove to hold me personally liable?

A landlord suing on a lease guaranty must prove three things: the existence of the guaranty, the underlying debt, and the guarantor’s failure to perform under the guaranty. Those three elements are the landlord’s entire prima facie case. Once the landlord proves them, the burden shifts to you to raise a triable issue on a bona fide defense.

The guaranty must also be in writing. A promise to answer for the debt of another is void unless it, or a memorandum of it, is in writing and subscribed by you or an agent you authorized.

Notice how short the landlord’s list is. It says nothing about the surrender date, the notice, or the keys. Compliance with the conditions is your showing, not his. You establish the surrender date, and the cap follows from it.

Law: Cooperatieve Centrale Raiffeisen-Boerenleenbank, B.A. v Navarro, 25 N.Y.3d 485 (2015); Davimos v Halle, 35 A.D.3d 270 (1st Dept 2006); General Obligations Law 5-701(a)(2).

Why was I served with a motion instead of a complaint?

CPLR 3213 permits a plaintiff to serve a motion for summary judgment together with the summons, in place of a complaint, when the action is based on an instrument for the payment of money only. Landlords use this device against guarantors. The motion is the pleading, and your answering papers are due before the return date the plaintiff sets.

The phrase “instrument for the payment of money only” is construed narrowly. A guaranty of payment and performance, rather than of payment alone, does not qualify. Neither does one where the court must look outside the document to determine what you owe. That argument is worth making.

Regarding your immediate problem, the argument is second. The deadline is first. The return date and your response date appear on the face of the papers. The minimum time to that date tracks the time you would have had to appear under CPLR 320(a), which depends on how you were served. No default may be entered before the return date. After it, judgment can be entered on the papers as they stand.

If the motion is denied, the moving and answering papers are deemed the complaint and answer unless the court orders otherwise. The case then proceeds as an ordinary action, and discovery follows. So the motion is a fast track, not a closed door.

Law: CPLR 3213; CPLR 320(a).

Can the landlord leave the space empty and keep billing for it?

A commercial landlord in New York has no duty to mitigate damages after a tenant abandons the premises, unless the lease imposes one. The landlord may do nothing and collect the rent as it comes due. Residential landlords must mitigate by statute. Commercial landlords need not. That rule is why the surrender date in your guaranty matters so much.

When a commercial tenant abandons, the landlord has three choices. He may do nothing and sue for the rent as it becomes due. He may accept the surrender and relet for his own account, which ends the tenant’s further liability. He may notify the tenant and relet for the tenant’s account, crediting the proceeds against what the tenant owes.

The landlord picks. You do not. An empty storefront with four years left on the lease keeps generating a claim. The good guy guaranty is the single document that keeps those four years off your personal balance sheet.

Law: Holy Properties Ltd., L.P. v Kenneth Cole Prods., Inc., 87 N.Y.2d 130 (1995); Real Property Law 227-e.

What this means for you

Your defense to a good guy guaranty claim is built from a handful of documents and two dates, and you can gather all of them yourself tonight. Do these six things in order before you call anyone. What you find determines whether the case against you is capped at the surrender date or runs the whole lease term.

1. Find the guaranty, not the lease. The guaranty is frequently a separate short document, or a rider to a lease amendment. The lease will not tell you what you owe personally. The guaranty will.
2. Read the operative sentence and copy it out. Find the words that describe when your liability ends. Write that sentence down verbatim. Every question in your case is answered inside it.
3. Check for incorporation language. Look for any reference to the lease’s surrender article, or to the landlord’s written consent or acceptance. If that language is absent from the guaranty, the landlord cannot borrow it from the lease.
4. Calculate two dates. The date you delivered written notice, and the date you actually handed back vacant possession. Count the days between them. Compare that number to the notice period the guaranty requires.
5. Assemble proof of each condition. The notice and its proof of delivery. Photographs of the empty premises on the surrender date. A receipt, email, or text confirming who took the keys and when. The rent ledger through the surrender date.
6. Answer the one open question. Was every dollar of rent and additional rent current as of the surrender date? If the answer is yes, your cap holds. If the answer is no, that is the first thing your attorney needs to know.

If you were served with a motion rather than a complaint, move the deadline to the top of that list. Everything else can be reconstructed. A missed return date cannot.