In commercial real estate, very few deals close without estoppel certificates from the major tenants. They're a quiet, lawyer-driven piece of due diligence that most borrowers and sponsors only encounter once they're under contract or seeking financing, and most tenants only think about when their landlord asks them to sign one. But for buyers and lenders, the estoppel certificate is one of the most important diligence documents in any deal: it's the tenant's own confirmation that the rent roll the seller handed you actually matches the lease the tenant signed.
The word "estoppel" comes from the legal concept of being "estopped" from later claiming something different from what you said before. An estoppel certificate is the tenant's signed statement of key lease facts: how much rent they pay, what the lease term is, what landlord obligations are outstanding, whether there are any side letters or modifications, and whether the landlord is in default of anything. Once signed and delivered, the tenant is generally prevented from later disputing those facts against the party who relied on them.
This guide walks through what an estoppel certificate is, what it covers, who requires one, the differences between a tenant estoppel and a Subordination Non-Disturbance and Attornment Agreement (SNDA), how to negotiate the document, and the issues that commonly come up. If you're trying to close a CRE deal that depends on tenant estoppels and need financing on the back of them, Lev can match you with lenders.
What is an estoppel certificate?
An estoppel certificate (sometimes called an estoppel letter, tenant estoppel, or estoppel statement) is a signed declaration in which a tenant confirms specific factual statements about the tenant's lease. The document is typically requested by a buyer or lender during due diligence on a sale or financing transaction, and it gets signed by the tenant and delivered to the requesting party.
Once executed, the certificate creates an estoppel: the tenant is legally barred from later asserting facts contrary to what they just confirmed. If the tenant signs that rent is $50,000 per month with no offsets due, they generally can't show up six months later and claim the rent is actually $40,000 because of an unwritten side agreement with the seller.
The document protects the buyer and lender from three categories of nasty surprises:
Unwritten modifications: a side letter, oral agreement, or course of conduct that changes the lease economics in ways not reflected in the lease document.
Outstanding landlord obligations: unspent TI allowances, deferred maintenance owed, free rent not yet provided, or unpaid concessions.
Tenant defenses to rent: claims of constructive eviction, breach of quiet enjoyment, or other tenant arguments that could reduce future rent obligations.
For these reasons, almost every institutional CRE transaction includes tenant estoppels as a closing condition. A buyer relying on a rent roll without estoppels is taking the seller's word that the leases say what they're supposed to say.
What's in an estoppel certificate?
A standard estoppel certificate confirms the following:
Lease identification: tenant name, landlord name, premises description, and the dates and signatures on the lease and all amendments.
Lease term: the current term start and end dates, any extensions or amendments that have already been exercised, and any renewal or extension options that remain outstanding.
Rent: current base rent, the rent schedule going forward (escalations or steps), any percentage rent provisions, and the next scheduled rent change.
Other payments: CAM, taxes, insurance, utilities, and other operating expense pass-throughs the tenant is currently paying. Sometimes broken down into base year and current obligations.
Security deposit: the form and amount of any security deposit, including letters of credit and similar instruments.
Concessions and outstanding landlord obligations: any unspent TI allowances, unused free rent, unpaid commissions, unreimbursed broker fees, or other dollar obligations from the landlord to the tenant that have not yet been satisfied.
Lease modifications: confirmation that the listed lease and amendments constitute the entire agreement, with no oral modifications, side letters, or course-of-dealing arrangements not reflected.
Defaults: whether the landlord is in default of any lease obligations, and whether the tenant has any current setoffs, deductions, or claims against future rent. Whether the tenant is in default to the landlord.
Options and rights: any options to purchase, rights of first refusal or first offer, renewal options, expansion rights, contraction rights, or termination rights. These are critical because they impose future obligations on the buyer.
Operations: confirmation that the tenant is in possession, paying rent, and operating the premises in accordance with the lease.
Authority: confirmation that the signer is authorized to sign on behalf of the tenant.
A typical commercial estoppel certificate runs 3 to 7 pages. Multifamily estoppels are usually shorter and simpler (sometimes just a half-page form). Industrial and office estoppels are typically longer because the lease economics and operational provisions are more complex.
For a deeper dive on how estoppels fit into the broader rent roll and lease abstract diligence framework, see Lev's CRE due diligence guide.
Who requires an estoppel certificate?
Three parties typically request estoppels:
Buyers: in a sale transaction, the buyer wants to confirm the rent roll the seller represented matches the leases as the tenants understand them. Without estoppels, the buyer is relying entirely on the seller's representations and warranties, which may have limited recourse.
Lenders: in a financing transaction, the lender wants to confirm cash flow assumptions are accurate, that there are no major outstanding capital obligations the lender hasn't been told about, and that no tenants have claims that could reduce future rent. Lender estoppels are often required as a closing condition on loans of meaningful size.
Investors: in an equity investment or JV, the new equity partner may require estoppels to confirm the property's operating profile.
The most common practice is for the buyer or lender to draft the estoppel form and the seller/borrower to obtain the signatures from tenants. The buyer or lender's lawyer drafts a form they're comfortable relying on; the seller/borrower's job is to actually get tenants to sign it.
Lender estoppels vs buyer estoppels
Most lender forms are slightly different from buyer forms. The key differences:
Lender estoppels typically include additional certifications about no setoffs against rent, no claims of landlord default, no tenant insolvency, and acknowledgment of the lender's right to collect rent directly in the event of borrower default.
Buyer estoppels focus more on the operational and economic terms of the lease. They confirm the lease economics, outstanding obligations, and options.
In a sale-financing combo transaction (the most common deal structure), the parties usually agree on a single form of estoppel that covers both buyer and lender concerns. Tenants are then asked to sign one document that both parties can rely on.
Estoppel vs SNDA: what's the difference?
Buyers and brokers often confuse estoppel certificates with Subordination Non-Disturbance and Attornment Agreements (SNDAs). They're related but distinct documents.
Estoppel: tenant confirms factual statements about the lease. Used by buyers and lenders to verify lease economics and obligations. Backward-looking confirmation.
SNDA: tenant agrees to the relative priority of the lease vs the senior mortgage. Three pieces:
- Subordination: tenant agrees the lease is subordinate to the lender's mortgage (the mortgage takes priority).
- Non-disturbance: in exchange for that subordination, the lender agrees not to disturb the tenant's possession even if the lender forecloses on the landlord.
- Attornment: tenant agrees, in case of foreclosure, to recognize the lender (or whoever buys at foreclosure) as the new landlord under the same lease terms.
SNDAs are forward-looking arrangements that govern what happens in a future default. Estoppels are backward-looking confirmations of where things stand today.
Most large institutional deals include both: an estoppel confirming current lease facts, and an SNDA setting up the lender's protection in a default scenario. Some lenders require both from all major tenants; others only require SNDAs from anchor or critical tenants.
For more on how SNDAs interact with the senior debt position, see Lev's commercial lien guide.
When are estoppels typically required?
Estoppels become a closing condition in the following scenarios:
Sale transactions: almost always. The PSA (purchase and sale agreement) will list estoppels as a closing condition, with a threshold for how many or what percentage of tenants must deliver signed estoppels for the buyer to close. Common thresholds: 100% of major tenants (anchor and pad tenants in retail; top 3 or top 5 tenants in office/industrial), and 65 to 85% of all tenants by rent or square footage.
Refinancing: usually, for major tenants. Lender will specify which tenants must deliver estoppels as a condition to funding.
Construction or bridge loan transition to permanent financing: yes, especially for the tenants whose leases were signed during the construction or stabilization period.
Acquisition financing: yes, layered on top of the sale estoppel requirement. Often the seller obtains estoppels for both the buyer and the buyer's lender at the same time.
Sale or financing of a single-tenant property: yes. The single tenant's estoppel is essentially the entire property's diligence in cash-flow terms.
Bulk lease assignment or transfer: sometimes, depending on the structure.
In multifamily, estoppels are less common because lease standardization is high and the tenant pool is large. For larger institutional multifamily deals, "blanket" estoppels (a representation from the landlord rather than from individual tenants) are sometimes negotiated. For smaller deals and single-family or small multifamily, estoppels are rare.
Negotiating an estoppel certificate
For tenants, signing an estoppel certificate creates real liability if the statements are inaccurate. As a result, tenants often negotiate the form before signing. Common tenant pushback points:
"Knowledge" qualifications: tenant requests the certifications be made "to the tenant's actual knowledge" rather than as absolute facts. This protects the tenant against inadvertent inaccuracies.
Scope limitations: tenant agrees to certify certain facts but pushes back on broader catch-all statements like "no oral modifications exist."
Materiality thresholds: tenant agrees to certify there are no material defaults, but not absolute statements that nothing has ever been disputed.
Indemnification limits: tenant pushes back on broad indemnification language that would require the tenant to indemnify the buyer for any loss flowing from inaccuracies. Tenants often want indemnification limited to fraud or gross negligence.
Form requirements in the lease: if the lease specifies a form of estoppel, the tenant insists on using that form rather than the buyer's or lender's standard form. This is the strongest leverage point a tenant has and is exactly why thoughtful tenant lease drafting includes the estoppel form as an exhibit.
Time to review: tenant requests reasonable time to review and respond (typically 10 to 30 days). Buyers and lenders often push for faster.
Costs: tenant requests reimbursement of attorney fees for review (especially for sophisticated tenants on complex leases).
The landlord's job in this negotiation is to balance the buyer/lender's diligence needs against the tenant's reasonable concerns, recognizing that a tenant who refuses to sign or signs a watered-down estoppel may break the closing or trigger lease modifications.
The lease provision that makes estoppels easier
Sophisticated landlords include an estoppel certificate requirement in the lease itself. A typical clause says:
Tenant shall, within X days after written request from Landlord, execute and deliver a certificate, in form substantially similar to the form attached as Exhibit X (or in such other form as Landlord may reasonably require), certifying [list of items].
With this clause in place, the tenant is contractually obligated to sign the estoppel within the specified time frame, and failure to do so is itself a lease default. The form is typically attached as an exhibit, so the tenant agreed to the form when signing the lease.
For tenants signing a lease, this provision deserves careful negotiation. Once it's in the lease, the tenant's leverage to negotiate the estoppel later is dramatically reduced. Common tenant negotiation points: limit the certifications to actual knowledge, allow reasonable comments to the form, give the tenant a longer response window (30 days vs 5 days), and limit the frequency of estoppel requests (no more than twice per year, for example).
Common pitfalls in the estoppel process
Some recurring issues:
Starting too late: estoppels can take 4 to 8 weeks to obtain, especially from large national tenants whose legal review processes are slow. Deals that wait until two weeks before closing to start the estoppel process often face frantic last-minute scrambles or have to extend the closing.
Discrepancies surface late: an estoppel comes back showing the tenant believes the rent is different than the seller represented. Now there's a fight: was the seller's rent roll wrong? Is the tenant wrong? Is there a side letter no one's seen? Resolving these issues in week 8 of a 9-week diligence period is painful.
Tenants refuse to sign: a tenant flatly refuses to sign or insists on changes the buyer/lender won't accept. If the lease doesn't contractually require the estoppel, the landlord has limited recourse. If the lease does require it, the landlord can pursue tenant default remedies, but that's a poor business outcome.
Estoppel form doesn't match buyer/lender requirements: the form attached to the lease (if there is one) may not contain the exact certifications the buyer or lender needs. Negotiation between the parties is needed to reconcile.
Landlord overreach in estoppel requests: landlords sometimes try to use the estoppel process to extract tenant concessions or modify the lease. Tenants typically refuse, and the estoppel becomes a contentious negotiation rather than a clean diligence step.
Stale estoppels: an estoppel obtained six months before closing may no longer be reliable if circumstances have changed. Most buyer/lender forms require the estoppel be dated within 30 to 60 days of closing.
How to manage the estoppel process
Practical workflow for landlords and brokers running the estoppel process:
1. Identify required tenants early: as soon as the PSA or loan term sheet is signed, identify which tenants need to sign estoppels. Build a tracking list with tenant name, contact, lease provisions, and target delivery date.
2. Use the lease's required form if one exists: it's faster and tenants are more likely to sign.
3. Send estoppels promptly: aim for 4 to 6 weeks before closing. Include a cover letter explaining the deal, the deadline, and any contact information for questions.
4. Track responses: weekly check-ins with all outstanding tenants. Escalate to senior leadership at the tenant if needed (sometimes the tenant's local manager isn't authorized to sign).
5. Negotiate edits: when tenants come back with edits, route them through the landlord's lawyer. Most edits are minor and easily accepted. A few categories of edits are deal-altering and need careful attention.
6. Reconcile discrepancies: if an estoppel surfaces a discrepancy between what the seller represented and what the tenant says, investigate immediately. Pull lease amendments, side letters, and the operational record.
7. Deliver final, signed estoppels to closing: clean PDFs of signed originals, organized in the closing binder.
Frequently asked questions
Who pays for estoppel certificates?
The seller or borrower (the landlord) typically pays for any tenant attorney fees the lease requires reimbursing. The buyer or lender's lawyer drafts the form, and that cost is in the buyer/lender's deal budget. Tenants generally don't pay anything to sign an estoppel.
How long does it take to get estoppels?
Typically 4 to 8 weeks from request to fully executed and delivered. National tenants with formal legal review processes can take 8 to 12 weeks. Smaller local tenants often turn estoppels around in 1 to 2 weeks. Start early.
What if a tenant refuses to sign?
Check the lease for a contractual estoppel obligation. If it exists, the landlord can demand compliance and, in extreme cases, pursue default remedies. Without a contractual requirement, the landlord's leverage is limited, and the deal may need to proceed without that tenant's estoppel. Buyers and lenders typically have closing thresholds (e.g., 85% of tenants by rent) that allow them to close with some estoppels missing.
Can an estoppel certificate be amended after signing?
In theory, yes, but in practice, no. Once a buyer or lender has relied on the estoppel and closed, the tenant is bound by it. Tenants who later discover inaccuracies in their own estoppel face an uphill battle to rescind.
Are estoppels required for residential tenants?
Multifamily estoppels are less common than commercial estoppels but do exist, especially for institutional-grade properties and larger transactions. Smaller multifamily deals often skip estoppels in favor of seller representations and warranties.
What's a "blank" or "blanket" estoppel?
A landlord-provided document representing the lease status of the entire tenant base without individual tenant signatures. Sometimes used in multifamily transactions where obtaining individual tenant estoppels is impractical. Less reliable than tenant-signed estoppels but better than nothing.
What happens if the estoppel says rent is different than the rent roll?
The deal halts until the discrepancy is resolved. Either the rent roll was wrong, the tenant misunderstands the lease, or there's an unrecorded modification. The landlord, buyer, and lender's lawyers will investigate, review documents, and reconcile. Until reconciled, the buyer or lender can refuse to close.
Is an estoppel certificate the same as a lease abstract?
No. A lease abstract is a narrative summary of a lease's key provisions, prepared by the landlord's team for internal reference. An estoppel certificate is a tenant-signed confirmation of specific facts, prepared and signed in connection with a transaction.
How recent does the estoppel need to be?
Most buyer and lender forms require the estoppel be dated within 30 to 60 days of closing. Older estoppels may be stale and unreliable, especially if material lease events have occurred (rent changes, modifications, defaults).
Are estoppels enforceable?
Yes. An estoppel certificate, properly signed, is enforceable against the tenant. The tenant is legally barred from later asserting facts contrary to those certified. Enforcement is typically through litigation, but the legal grounding for estoppel is well-established.
What's an "estoppel fee"?
Some condo associations and master-leased properties charge a fee (typically $0 to $500) for issuing an estoppel certificate. This is more common in residential and condo contexts than in commercial leases. Commercial tenants typically don't charge estoppel fees.
What's the difference between a tenant estoppel and a landlord estoppel?
In most contexts, "estoppel certificate" refers to the tenant's certification to a buyer or lender. A "landlord estoppel" is the reverse: a landlord's certification to a tenant or its lender confirming the status of the lease from the landlord's perspective. Less common but does appear in some financing structures.
The takeaway
The estoppel certificate is the quiet workhorse of CRE diligence. Without it, every closing depends on the seller's representations alone, and every refinancing depends on the borrower's representations alone. With it, the buyer or lender has the tenant's own confirmation that the deal economics they're underwriting actually match the leases as the tenants understand them.
For sponsors and landlords, the practical lessons are: build estoppel requirements into your leases, manage the estoppel process actively and early in any transaction, and treat any estoppel discrepancy as the most important issue in the deal.
For tenants, the practical lessons are: read every estoppel carefully, qualify certifications with "to actual knowledge" where appropriate, and treat estoppel forms attached to your lease as material provisions worth negotiating.
If you're preparing a CRE property for sale or financing and need to coordinate estoppels alongside lender outreach, start with Lev. Lev's platform helps brokers and sponsors run the diligence and financing tracks in parallel, so estoppels and capital sourcing don't end up on the critical path.
