The three letters in SNDA are the easy part. What decides whether a lease survives a foreclosure intact are the successor liability carve-outs, the lender cure rights, and the amendment consent covenant buried after them. Upload the agreements and get all of it extracted, each field citing its source page.
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An SNDA is a three party agreement among the tenant, the landlord, and the landlord's lender. Three provisions give it its name. Four more decide what the tenant and the lender actually walk away with. Each row states what the tenant gives or gets, what the lender gets, and what happens at a foreclosure sale if that provision is not there.
| SNDA provision | What the tenant gives or gets | What the lender gets | What happens at foreclosure without it |
|---|---|---|---|
| Subordination | The tenant agrees its leasehold interest is junior to the lender's mortgage | Lien priority, so a foreclosure extinguishes interests that sit below the mortgage | If the lease was recorded first it is senior, foreclosure does not touch it, and the lender cannot remove a badly below-market tenant it never underwrote |
| Non-disturbance | Possession and the lease survive the foreclosure so long as the tenant is not itself in default | Nothing directly. Non-disturbance is the price the lender pays to obtain subordination | A subordinated lease can be terminated at the foreclosure sale. The tenant loses the space and whatever it spent building it out, which is why no sophisticated tenant subordinates without it |
| Attornment | The tenant recognizes the foreclosing lender or purchaser as its new landlord and keeps performing | A rental stream that survives the transfer of title | The successor owner has no contractual relationship with the tenant. The tenant may be free to treat the lease as terminated and leave, taking the income the lender was underwriting |
| Successor liability carve-outs | The tenant gives up claims against the new owner for the prior landlord's defaults, for prepaid rent, for offsets, and for a deposit the new owner never received | Protection from obligations the borrower created and the lender never priced | The lender takes title and inherits unfunded tenant improvement work, a claimed rent offset, and liability for a security deposit the borrower already spent |
| Notice and cure to the lender | The tenant must notify the lender of a landlord default and allow it a period to cure before terminating or offsetting | The chance to save its collateral before the lease that supports it disappears | A tenant terminates for a landlord default that the lender would gladly have cured, and the lender learns about it after the fact |
| Rent offset waiver | The tenant waives the right to offset unfunded landlord obligations against rent as to the successor | A clean, underwritable income stream rather than a contingent one | The underwritten rent never arrives in full. The tenant self-helps out of the rent for work the prior landlord promised and never did |
| Amendment and prepayment consent | The tenant agrees not to materially amend or terminate the lease, or prepay rent more than a month ahead, without lender consent | Control over the collateral lease for the life of the loan | Borrower and tenant restructure the anchor lease after closing, and the collateral the lender underwrote quietly becomes a different asset |
Most SNDA abstracts record that an SNDA exists. That is not the question anyone is actually asking.
Whether the lease is subordinated, whether non-disturbance was granted and on what conditions, and the precise scope of the attornment obligation, including whether it survives a deed in lieu as well as a foreclosure sale.
What the successor is not liable for: prior landlord defaults, prepaid rent, offsets, deposits never delivered, and unfunded tenant improvement allowances. This is where the money is and it is the part most abstracts compress into a single yes or no.
Whether the tenant must notify the lender of a landlord default, how long the lender has to cure, whether that period runs independently of the landlord's, and whether the lender may enter to cure without becoming a mortgagee in possession.
Any covenant restricting the tenant from amending, terminating, or surrendering the lease, or from prepaying rent, without the lender's consent, together with the consent standard that applies.
Across a portfolio the useful output is the gap list: the leases with no SNDA, the ones subordinated without a non-disturbance grant, and the ones whose non-disturbance is conditioned on something the tenant has not done.
Excel, CSV, and JSON, plus an API, so the SNDA matrix lands in the closing checklist, the loan file, or the lease administration system that will track the notice obligations afterward.
From a stack of three party agreements to a matrix showing which leases actually survive a foreclosure.
Include each executed SNDA, the lease and amendments it references, and any subordination clause in the lease itself. Leases often contain automatic subordination language that an SNDA later modifies, and both documents have to be read together.
The model returns the subordination scope, the non-disturbance grant with every condition on it, the attornment obligation and the transfer events it covers, the successor liability carve-outs, the lender cure period, and any amendment consent covenant.
Every field cites the page it came from. The output flags the leases with no SNDA, the ones subordinated without non-disturbance, and the non-standard carve-outs a tenant negotiated. Those are the ones counsel reads.
Push to Excel, CSV, JSON, or the API, and model the collateral against the leases that would actually still be there the day after a foreclosure sale.
Last updated July 2026. What SNDA stands for, what each of the three parts does, what an attornment clause obligates a tenant to do, and what happens to a lease in foreclosure when there is no SNDA at all.
SNDA stands for subordination, non-disturbance, and attornment agreement. It is a three party contract among a commercial tenant, its landlord, and the landlord's mortgage lender, and it governs what happens to the lease if the landlord defaults on the mortgage and the lender forecloses on the property.
SNDA abstraction is the extraction of an SNDA's operative terms into structured fields: the subordination scope, the non-disturbance grant and its conditions, the attornment obligation, the successor liability carve-outs, the lender notice and cure rights, and any covenant restricting amendment or prepayment. Across a portfolio it produces a matrix showing which leases would still exist the day after a foreclosure sale.
Most lease abstracts handle SNDAs with a checkbox. That records the wrong fact. Whether an SNDA exists tells you nothing about whether the tenant is protected, because a subordination granted without a non-disturbance covenant leaves the tenant worse off than having signed nothing at all. The document-level explainer is on SNDA agreement explained.
Subordination is the tenant's agreement that its leasehold interest ranks below the lender's mortgage. Priority normally follows recording order, so a lease signed before the mortgage would otherwise be senior to it. Subordination reverses that, which matters because a foreclosure extinguishes interests junior to the lien being foreclosed and leaves senior interests untouched.
Non-disturbance is the lender's promise that if it forecloses, it will not disturb the tenant's possession or terminate the lease, provided the tenant is not in default. It is the consideration the tenant receives for subordinating. Without it, subordination is a one-way concession: the tenant makes its lease extinguishable and gets nothing back.
This is the single most important thing an SNDA abstract can record, and it is the field most often lost. Many leases contain automatic subordination language that binds the tenant whether or not a lender ever grants non-disturbance in return. Finding those leases across a portfolio is the point of the exercise.
An attornment clause obligates the tenant to recognize a new owner as its landlord and to continue performing under the lease, whether that owner takes title through a foreclosure sale, a deed in lieu, or an ordinary sale. Attornment creates the legal relationship between tenant and successor that would not otherwise exist, since the successor was never a party to the lease.
Attornment is what makes the income stream portable. Non-disturbance protects the tenant from the lender. Attornment protects the lender from the tenant, by removing the tenant's argument that a foreclosure ended its obligations. Both directions have to be present for the agreement to do its job.
Three parties: the tenant, the landlord, and the landlord's mortgage lender. The lender usually drives the form and the timing, because the SNDA exists to protect its collateral. Landlords typically agree in the lease to obtain SNDAs from future lenders, and tenants of any size negotiate for that covenant precisely because they cannot obtain one on their own later.
Because the lender is lending against an income stream it does not control and cannot enforce. Attornment guarantees the rent survives a foreclosure. The successor liability carve-outs guarantee the lender does not inherit the borrower's unpaid obligations along with the building. The amendment consent covenant keeps the borrower from restructuring the collateral lease after the loan closes.
Lenders normally require an SNDA and a tenant estoppel certificate in the same package, and they answer different questions. The estoppel verifies the lease facts as they stand today. The SNDA fixes what happens to those facts in a foreclosure. The comparison is on estoppel certificate vs SNDA, and the reconciliation workflow for the other document is on estoppel certificate abstraction. The underwriting view of both is on lease abstraction for lenders.
The outcome depends on lien priority under state recording and foreclosure law. If the lease is senior to the mortgage, foreclosure does not disturb it and the buyer at the sale takes subject to the lease. If the lease is junior, whether because it was recorded later or because the lease itself contains automatic subordination language, the foreclosing lender can generally terminate it.
That asymmetry produces the two failure modes worth abstracting for. A junior lease with no non-disturbance means a tenant who can be evicted despite paying rent for a decade. A senior lease with no attornment means a lender who forecloses and then discovers the tenant it was counting on can walk. Neither shows up on a rent roll. Both show up on a rent roll rebuilt from the leases only if somebody read the subordination article.
Yes, and the gap list is the reason to do it. The model reads each SNDA with the lease it attaches to, returns the subordination scope, the non-disturbance conditions, the attornment events, the carve-outs, and the cure rights, then flags the leases with no SNDA and the ones subordinated without non-disturbance in return.
Accuracy depends on scan quality and every published accuracy figure in this category is self-reported, so test on your own worst-scanned closing binder first. Batch processing is handled by bulk lease upload, the notice obligations an SNDA creates belong in critical date extraction, counsel running the review will want lease abstraction for paralegals, and the general product overview is on lease abstraction software. Ground lease deals raise the same subordination question one level up, covered on ground lease abstraction.
Subordination, non-disturbance, and attornment agreement. It is a three party contract among a commercial tenant, its landlord, and the landlord's mortgage lender, governing what happens to the lease if the landlord defaults and the lender forecloses.
Extracting an SNDA's operative terms into structured fields: subordination scope, the non-disturbance grant and its conditions, attornment, successor liability carve-outs, lender notice and cure rights, and any amendment consent covenant. Across a portfolio it shows which leases survive a foreclosure.
A clause obligating the tenant to recognize a new owner as its landlord and keep performing under the lease, whether that owner takes title by foreclosure sale, deed in lieu, or ordinary sale. It creates the tenant to successor relationship that would not otherwise exist.
Subordination is what the tenant gives: its leasehold ranks below the mortgage, so foreclosure can extinguish it. Non-disturbance is what the tenant gets back: the lender promises not to terminate the lease or disturb possession if the tenant is not in default.
The tenant, the landlord, and the landlord's mortgage lender. The lender normally drives the form and the timing because the agreement exists to protect its collateral. Tenants of any size negotiate a lease covenant requiring the landlord to obtain one from future lenders.
It turns on lien priority under state recording and foreclosure law. A lease senior to the mortgage survives foreclosure untouched. A junior lease, including one subordinated by automatic language in the lease itself, can generally be terminated by the foreclosing lender.
Yes. The model reads each SNDA with the lease it attaches to and returns subordination, non-disturbance conditions, attornment events, carve-outs, and cure rights, then flags the leases with no SNDA and those subordinated without non-disturbance in return.
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