If you own a straight single family rental, you will probably never see an SNDA. If you own a mixed use building with a ground floor commercial tenant, a small strip of retail, or a five plus unit property with a long lease in place, you will see one, and it will arrive late, from a lawyer, with an expectation that you sign it quickly.
SNDA stands for Subordination, Non Disturbance and Attornment. It is a three party agreement among the lender, the landlord, and a tenant. Three words, three separate promises, and they do not all run in the same direction. Understanding which promise protects whom is the whole exercise.
The default rule the SNDA is written against
Start with what happens without one, because the SNDA exists to change a default outcome.
Real property interests generally rank by time. First in time, first in right. If a lease was signed and the tenant took possession before the mortgage was recorded, the lease is senior to the mortgage. If the mortgage was recorded first, the lease is junior.
That ordering decides what happens at a foreclosure sale. Foreclosing a senior mortgage wipes out junior interests, including junior leases. The buyer at the sale takes the property free of them and can evict. Foreclosing a mortgage that is junior to a lease does not touch the lease, and the buyer takes subject to it.
Now notice that both outcomes can be bad for somebody.
A tenant who spent 140,000 dollars building out a restaurant under a ten year lease does not want that lease extinguished because the landlord defaulted on a loan the tenant had nothing to do with.
A lender does not want to be stuck with a below market twenty year lease that a previous owner signed with a friend, which it cannot get rid of because the lease predates the mortgage.
The SNDA lets the parties choose their outcome rather than accept whatever the recording dates happen to produce.
The three promises
Subordination. The tenant agrees its lease is junior to the mortgage, regardless of recording order. This protects the lender. It converts a lease that might have been senior into one the lender can extinguish in a foreclosure if it wants to.
Non disturbance. The lender agrees that as long as the tenant is not in default, it will not disturb the tenant’s possession if it forecloses. This protects the tenant. It is the consideration the tenant gets in exchange for subordinating, and it is the clause tenants actually care about.
Attornment. The tenant agrees that if the lender or a foreclosure buyer takes over, the tenant will recognize that party as its new landlord and keep paying rent under the same lease. This protects the lender and the buyer. It prevents a tenant from treating foreclosure as a chance to walk.
Read as a package, the trade is clean. The tenant gives up its priority and in return gets a promise it will not be thrown out. The lender gains the option to keep good leases and, through the subordination piece, the ability to clear bad ones.
Which is why a tenant should never sign a bare subordination agreement with no non disturbance clause. That is one side of the trade with nothing coming back. It happens more than it should, because the document is often presented as routine.
What the lease is worth, in ratio terms
This is not an abstract legal preference. On a mixed use building the commercial lease can be most of your coverage.
Take a five unit mixed use property: four apartments over one ground floor commercial space. The apartments rent for 1,150 dollars each, so 4,600 dollars. The commercial tenant pays 2,300 dollars a month on a lease with six years left. Total gross rent is 6,900 dollars.
The loan is 585,000 dollars at 7.625 percent on a thirty year amortizing term, so principal and interest are about 4,141 dollars a month. Taxes are 640 and insurance is 285. PITIA is 5,066 dollars.
DSCR is 6,900 divided by 5,066, which is 1.36. That is a comfortable file, and it is comfortable specifically because of the commercial lease.
Now suppose that 2,300 dollar lease is above market and the space would re let today at 1,700 dollars. Replace it and gross rent is 6,300 dollars, so DSCR is 6,300 divided by 5,066, which is 1.24. Still fine, noticeably worse.
Now suppose it takes nine months to find a commercial tenant, which is entirely ordinary for ground floor retail. During that stretch gross rent is 4,600 dollars and DSCR is 4,600 divided by 5,066, which is 0.91. The building does not cover its own debt service.
That spread is why a lender may very much want the option to keep the lease, and it is why the subordination clause is drafted as an option rather than an automatic extinguishment. Sophisticated lender forms say the lease is subordinate but the lender may elect to have it survive. The lender keeps the lease when it is above market and sheds it when it is below. You can run your own version of this on the DSCR deal calculator, and if you are financing this kind of building, DSCR loans for 5 plus unit and mixed use properties covers how the whole file is underwritten.
Where the SNDA fits among the other documents
Three documents in an investor closing all deal with leases and rents, and they are routinely confused.
The assignment of leases and rents is between you and your lender. It lets the lender redirect rent to itself on a default, without foreclosure. The tenant is not a party and does not sign.
The tenant estoppel certificate is a statement of facts signed by the tenant: rent amount, term, deposit held, no outstanding defaults, no side agreements. It is a snapshot, not a promise about the future.
The SNDA is the forward looking one. It sets what happens to that tenant if the loan goes bad. Lenders often ask for an estoppel and an SNDA from the same tenant at the same time, because they answer different questions.
Beyond that, if things deteriorate far enough that a lender asks a court to appoint a receiver, the SNDA and the attornment clause shape who the tenants are supposed to pay. And on a portfolio loan, lease verification across the pool runs through the rent roll.
What non disturbance does not cover
Tenants and landlords both tend to read non disturbance as a guarantee that nothing changes. It is narrower than that, and the exclusions are where the money is.
Take the restaurant tenant from earlier. They spent 140,000 dollars on a buildout, amortized in their own books over the ten year lease term, so roughly 14,000 dollars a year of value remaining for each year left on the lease. With six years to run, they are protecting about 84,000 dollars of unrecovered investment. That is why their lawyer cares.
Here is what a typical lender form still leaves exposed even with non disturbance in place:
- Landlord work and tenant improvement allowances that were never paid. If your lease promised a 40,000 dollar improvement allowance and you never funded it, the successor landlord is generally not obligated to. The tenant’s remedy is against you, and you are the party who just lost the building.
- Security deposits never transferred. A successor landlord is commonly not liable for a deposit it did not actually receive. A commercial deposit can be three or six months of rent, which on a 2,300 dollar lease is 6,900 to 13,800 dollars the tenant may simply lose.
- Prepaid rent. If the tenant paid a year in advance at a discount, and the successor landlord never received that money, the tenant can be asked to pay again.
- Offsets and claims against the prior landlord. Unrepaired roof leaks, unresolved disputes, a rent abatement you agreed to informally. The successor takes the lease without the baggage.
- Amendments made without lender consent. An extension, a rent reduction, or an expansion you and the tenant agreed to after the loan closed may not bind the successor at all.
- Options to purchase and rights of first refusal. These are frequently carved out entirely, which matters if the tenant negotiated one as a condition of signing.
For you as the landlord, the practical reading is to stop treating commercial security deposits as working capital and to route any post closing lease amendment past your loan documents first. Both are habits, not expenses.
Practical notes for a landlord in the middle
Your lease probably already promised this. Most commercial leases contain a clause requiring the tenant to sign a commercially reasonable SNDA on request within a stated number of days. If yours does not, you have no way to compel a tenant to sign, and a lender condition requiring an executed SNDA becomes a condition you cannot satisfy. Check this before you go under contract on a mixed use building, and put the clause in every future commercial lease you sign.
Start early. An SNDA is a three way negotiation with a tenant whose lawyer has no interest in your closing date. Two weeks is optimistic. Request it the day the lender issues conditions.
Watch the clauses that reduce the lender’s exposure. Standard lender forms say the successor landlord is not bound by prepaid rent it never received, not liable for the prior landlord’s defaults, not responsible for a security deposit it was never given, and not bound by lease amendments made without lender consent. Those are normal. They are also the reason you should never hold a large commercial security deposit casually, and the reason lease amendments after closing need a look at your loan documents first.
Residential tenants rarely sign these. On a four unit building with one year residential leases, lenders almost never ask. The short lease term means foreclosure timing handles it. Whether you need signed residential leases at all at closing is a different question, covered in the DSCR lease requirement.
An SNDA affects what you can sell. A buyer taking subject to your leases inherits the SNDA terms too. If you expect to sell, read the agreement with an eye to what it does to a future buyer’s flexibility. Selling with the tenant in place or delivering vacant covers the broader version of that decision.
It usually gets recorded. Which means it is public, and a future lender or buyer will find it.
The short version
An SNDA rearranges what foreclosure does to a lease. The tenant subordinates, so the lender gets the power to extinguish the lease. The lender promises non disturbance, so a performing tenant keeps its space. The tenant attorns, so a foreclosure buyer inherits a paying tenant instead of an empty room.
Most lender forms make subordination automatic and survival optional, which gives the lender the good end of both outcomes: keep the above market lease, clear the below market one. That is not unreasonable, and it is worth understanding rather than discovering.
For you as the landlord, the two things that matter are practical. Make sure every commercial lease you sign contains an SNDA cooperation clause, because without it you cannot deliver a document your lender may require. And start the request the day conditions are issued, because you are negotiating with someone who does not care about your closing date.
If you are financing a mixed use or five plus unit property and the lender has conditioned the loan on tenant documents, get in touch or call 412-990-2941. FMC Capital is a Pittsburgh-based mortgage brokerage financing rental property and flips for investors throughout Pennsylvania and additional states.
FMC Capital, NMLS #1840537. General information for real estate investors, not legal advice. We are a mortgage brokerage, not a law firm, and nothing here is a recommendation about how to negotiate a lease or a tenant agreement. Lease priority rules, the effect of foreclosure on junior and senior leases, recording practice, the enforceability of automatic subordination and attornment provisions, and successor landlord liability for security deposits and prepaid rent are governed by the law of the state where the property sits and vary substantially. Document forms, lender conditions, underwriting treatment of commercial income and program terms vary by lender and are subject to change. Rents, rates and payments above are illustrative only. Have a licensed attorney in the property’s jurisdiction review any SNDA, estoppel or lease before you sign. NMLS #1840537.