Personal Guarantee on a Commercial Lease: What You're Actually Signing

Setting up an LLC, keeping business and personal finances separate, and signing contracts through the entity all point at one conclusion: the company's debts are the company's, not the owner's. A personal guarantee on a commercial lease is the document that undoes that conclusion for one specific obligation — the rent.

This is an observational explainer of how the instrument works and the terms that set how far it reaches. It is general information, not advice about your documents, and it does not describe the law of any particular state — guarantee enforcement, asset protection, and creditor remedies vary considerably by jurisdiction and are questions for a lawyer licensed where the property sits. The legal judgment about what to do with what you find is yours.

"Guarantee" or "guaranty"?

Both spellings appear, and they refer to the same instrument. Guaranty is the older form still preferred in commercial leasing documents and by many real estate lawyers; guarantee is the more common general-usage spelling and the one most people search for. A lease exhibit labeled "Guaranty of Lease" and a landlord's email about "the personal guarantee" are describing the same signature. Nothing turns on which spelling a document uses.

What the instrument actually does

A personal guarantee is a separate promise — sometimes a clause inside the lease, more often a standalone exhibit with its own signature line — in which an individual agrees to answer for the tenant entity's obligations. The entity is the tenant. The individual is the guarantor. Those are two different parties, and the guarantee is what connects them.

If the entity defaults, the landlord is not confined to pursuing the entity. The guarantee gives a direct claim against the individual, reaching that person's general assets rather than any pledged item. Limited liability is not defeated or pierced by this — it remains intact. The guarantor simply agreed, separately and voluntarily, to stand behind the obligation anyway. That distinction matters, because it means the exposure comes from the signature, not from any weakness in how the entity was formed or maintained.

Guarantee of payment vs. guarantee of collection

This distinction decides when the landlord can come to the guarantor, and it is frequently the difference between two drafts that otherwise read alike.

• Guarantee of payment. The landlord may proceed against the guarantor immediately on the tenant's default, without first suing the tenant, obtaining a judgment, or attempting collection. The guarantor is a parallel target from the first missed payment. Most landlord forms are drafted this way.
• Guarantee of collection. The landlord must first pursue the tenant and come up short before turning to the guarantor. The guarantor is a genuine backstop rather than a co-obligor.

The words that create the difference are easy to miss, and the effect is often reinforced elsewhere in the document by waivers — of presentment, demand, notice of default, and any requirement that the landlord exhaust remedies against the tenant or any security deposit first. Where those waivers are present, a guarantee of payment becomes a first stop rather than a last one. The same structural question appears in lending, covered in our collateral vs. personal guarantee explainer.

The arithmetic of an unlimited guarantee

The reason this clause carries more weight than its length suggests is that the exposure is a function of the remaining term, not of the amount in dispute.

Two features amplify the number. Additional rent — the operating costs passed through in a net lease — is commonly inside the guaranteed amount, so the guarantee covers more than base rent (see NNN vs. CAM for what sits in that bucket). And where the lease contains an acceleration clause, the entire remaining term can become due at once rather than month by month, which is covered in our rent acceleration explainer.

What can reduce the number: mitigation and reletting

The figure above assumes the space sits empty. In practice a landlord who re-lets the premises collects rent from a replacement tenant, and the guarantor's exposure is commonly reduced by what is recovered. Whether the landlord is obliged to try, how quickly, and on what terms varies significantly by jurisdiction and by what the lease says — some leases address it expressly, some are silent, and the background rule differs from place to place. It is one of the more consequential variables in the whole analysis and one of the least visible in the document itself, which is why it is a common question for counsel where the property is located.

Unlimited vs. limited: the forms that cap exposure

An unlimited guarantee covers the full remaining obligation from default to the end of the term, including additional rent and enforcement costs. Limited forms cap that in one of several ways:

• Rolling guarantee. Liability is limited to a defined window of rent — commonly stated in months — regardless of when the default happens or how much term remains. On a long lease this is typically the single largest reduction in exposure available.
• Burn-off guarantee. Begins as a full guarantee and expires after a period of on-time performance, commonly conditioned on no late payments and no default notices during the period. The conditions do most of the work, and a single technical default can reset or void the burn-off. Both forms are covered in detail in our rolling and burn-off explainer.
• Capped amount. A fixed ceiling stated in dollars or in months of rent, independent of the remaining term.
• Good guy guarantee. Liability ends when the guarantor vacates voluntarily, returns possession, and is current through that date — trading the landlord's worst case (a non-paying tenant who will not leave) for release from the remaining term. Common in some metropolitan markets and requested by name, since default landlord drafts rarely include it. See the good guy guaranty breakdown for the conditions that decide what the limit is worth.

The guaranty exposure calculator prices the same lease under each of these four structures.

Multiple guarantors and the joint-and-several problem

Where several owners sign, the operative words are usually "jointly and severally." That language commonly allows the landlord to collect the entire balance from any one guarantor, without regard to ownership percentage and without pursuing the others first. A one-third owner can face the full amount; recovering the other two-thirds from co-owners then becomes that person's own problem, pursued separately and at their own cost, against people whose business has just failed.

Negotiated versions sometimes state that each guarantor answers only for a proportionate share. The commercial significance of that change is easy to underestimate at signing and hard to overstate afterward.

Household and marital exposure

Whether a guarantee signed by one spouse reaches assets held jointly, or held by the other spouse, depends on the marital-property regime where the couple lives and on how the particular assets are titled. Those rules differ substantially from state to state, and this is squarely a question for a lawyer in the relevant jurisdiction rather than something a general explainer can answer.

What is observable in the documents is the request itself: landlords frequently ask both spouses to sign. A request for a second signature is a request for a second pool of assets, and understanding what is being asked is separate from deciding how to respond to it.

How long it lasts, and what extends it

Guarantees frequently outlive the circumstances that produced them. Four mechanisms account for most of it:

• Renewals and extensions. Many guarantees state that they continue through any renewal, extension, or holdover, whether or not the guarantor consents or is notified. A guarantee signed for a five-year term can therefore carry into a second term agreed years later.
• Amendments. Language consenting in advance to modifications of the lease means changes negotiated between landlord and tenant — including increases — can bind the guarantor without a further signature.
• Assignment and sale of the business. Selling the company does not by itself release the guarantor. Release commonly requires the landlord's written agreement, and a release-on-assignment provision negotiated at the outset — typically conditioned on the incoming tenant meeting stated financial criteria — is what makes an exit clean.
• Death or incapacity. Many forms bind the guarantor's estate and successors, so the obligation does not necessarily end with the individual.

The common thread is that ending a guarantee generally takes an affirmative written release. Leaving the company, selling it, or paying the rent for years are not, on their own, terminating events.

Where the document sits

Guarantees are often not in the body of the lease. They are exhibits — a separate signature page at the back of a stack, reached after weeks of negotiating rent, square footage, and buildout. The commercial terms get the attention; the instrument creating personal exposure gets a signature.

Placement does not affect enforceability. A guarantee in an exhibit is the same instrument as one in the body. Leases where the guarantee is unlimited, unconditional, drafted as a guarantee of payment with exhaustion waived, and extended automatically through renewals are commonly reviewed by counsel before signature. What you do with that information is your call.

LiabilityScore™ reads commercial leases and flags guarantee language, identifies whether the form is unlimited or limited, and surfaces what the document says in plain English. A scan provides information about the clause; the legal judgment about what to do with that information is the reader's. See also: personal guaranty clause breakdown and alternatives to a personal guaranty.

Related: personal guaranty analysis · guaranty exposure calculator · rolling and burn-off guaranties · good guy guaranty · collateral vs. personal guarantee. For teams reviewing contracts at volume: contract risk review.