Promissory Note for Real Estate Transactions

Real estate loans are more complex than most private loans. The promissory note is only half of the picture. The other half, the mortgage or deed of trust recorded with the county, is what actually protects the lender. This guide explains how the two work together and why a real estate attorney is worth the cost.

The note and the security instrument: always paired

In any real estate financing, two documents work together:

The promissory note. The borrower's personal promise to repay the loan on the stated terms. This is the debt instrument. If the borrower defaults and the collateral sale does not cover the full balance, the lender can pursue the borrower personally on the note for any deficiency.
The mortgage or deed of trust. The security instrument that pledges the property as collateral and creates a recorded lien. This is what gives the lender the right to foreclose. Without it, the note is an unsecured personal obligation; the lender has no lien on the real estate.

The mortgage or deed of trust must be signed, notarized, and recorded in the county recorder's office (or register of deeds) in the county where the property is located. Recording gives the lien "constructive notice" to all future buyers and creditors: anyone who checks the title record will see your lien.

Mortgage vs deed of trust: which one applies to you

The instrument used depends on your state's law:

Mortgage states (roughly 20 states): include Florida, New York, New Jersey, and Illinois. On default, the lender forecloses through the courts (judicial foreclosure). This can take 6 months to several years depending on the state and court backlog.
Deed of trust states (roughly 30 states): include California, Texas, Virginia, Colorado, and Arizona. On default, the trustee can conduct a non-judicial foreclosure (trustee's sale) under the power of sale clause without a court proceeding. This is faster, typically 30 to 120 days after notice to the borrower.
Some states allow both. The choice may be made by agreement or by custom in that state.

A real estate attorney in your state will know which instrument to use and how to draft it to comply with local recording requirements.

Owner (seller) financing: the promissory note's role

In owner-financed real estate, the seller acts as the lender. The structure is straightforward:

At closing, the buyer and seller sign the deed (transferring title to the buyer), the promissory note (the buyer's promise to pay the balance), and the mortgage or deed of trust (securing the note against the property).
The deed and the mortgage or deed of trust are recorded simultaneously at the county recorder's office. Simultaneous recording is important: if the deed is recorded without the mortgage or deed of trust, a third party could claim an interest in the property before your lien is recorded.
The buyer takes possession and makes monthly payments to the seller (now the lienholder) according to the note's schedule.
When the note is paid off, the seller signs and records a release of lien (satisfaction of mortgage or reconveyance of deed of trust). The buyer then has clear title.

Balloon payments: a common seller-financing structure

Many seller-financed real estate notes use a balloon payment structure: the buyer makes monthly interest-only (or amortizing) payments for a set period (typically 3 to 10 years), and then the full remaining balance is due in a single balloon payment. The seller gets regular income during the term and then full proceeds at the balloon date; the buyer gets time to improve their credit and then refinance with a conventional lender before the balloon comes due.

The risk is on the buyer's side: if they cannot refinance or come up with the balloon payment, the seller can foreclose. Be realistic about the buyer's ability to refinance before agreeing to a balloon structure, and include clear notice requirements before the balloon date so there are no surprises.

Federal rules for seller-financed residential mortgages

The Dodd-Frank Act of 2010 created "ability to repay" requirements for most residential mortgages, including many seller-financed transactions. If you sell a residential property (a home) to an individual and carry the financing yourself, you may be subject to these requirements unless your transaction qualifies for an exemption (there is a specific exemption for sellers who finance fewer than three properties per year, with additional conditions). Violating the ability-to-repay rules can expose you to significant penalties. A real estate attorney familiar with residential lending compliance will tell you whether and how these rules apply to your specific deal.

Our strong recommendation: use a real estate attorney

Real estate transactions involve more moving parts than a typical personal loan: recording requirements that vary by county and state, title insurance, existing liens, due-on-sale clauses in the seller's mortgage, federal regulatory compliance, and foreclosure procedures that differ significantly by state. An error in the mortgage or deed of trust, or a failure to record correctly, can undermine the entire security interest.

This guide provides educational context. For the actual documents in a real estate transaction, work with a licensed real estate attorney in your state. Their fee at closing is modest compared to the cost of correcting a defective lien or navigating a foreclosure without proper documentation.

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Frequently Asked Questions

Why does a real estate loan need both a promissory note and a mortgage (or deed of trust)?

They serve different legal functions. The promissory note is the borrower's personal promise to repay the debt. The mortgage or deed of trust is the security instrument that creates a lien on the specific real property. Without the note, there is no binding repayment obligation. Without the mortgage or deed of trust (recorded with the county), there is no enforceable lien on the property, meaning the lender cannot foreclose if the borrower defaults. You need both, and the mortgage or deed of trust must be recorded to be effective against third parties.

What is the difference between a mortgage and a deed of trust?

In a mortgage, the borrower (mortgagor) gives the lender (mortgagee) a lien on the property as security for the note. On default, the lender must go to court to foreclose (judicial foreclosure). In a deed of trust, the borrower conveys title to a neutral third party (the trustee) who holds it in trust for the lender (beneficiary). On default, the trustee can sell the property through a non-judicial foreclosure process (a trustee's sale) without going to court, which is typically faster. About 30 states use deeds of trust as the standard instrument; the rest use mortgages. Your state determines which is used.

How does owner financing work in real estate?

In owner-financed (seller-financed) real estate, the seller acts as the lender. The buyer pays a down payment, and the seller carries the remaining balance on a promissory note secured by a mortgage or deed of trust on the property. The buyer takes title immediately; the seller holds the lien (not the title) until the note is paid off. On payoff, the seller signs a release of lien (a discharge or satisfaction of mortgage, or a reconveyance of deed of trust) that is recorded with the county, giving the buyer a clear title.

What is a balloon payment and when is it used in real estate notes?

A balloon payment is a large final payment due at the end of the loan term, after a series of smaller regular payments. For example, a note may require monthly interest-only payments for 5 years, with the full principal balance due at the end of year 5 (the "balloon"). Balloon notes are common in real estate seller financing because: the seller may want the full proceeds within a defined period (expecting the buyer to refinance with a conventional lender by then), and interest-only payments keep the buyer's monthly obligation manageable in the short term. Balloon notes carry risk for the buyer: if they cannot refinance or pay the balloon when it comes due, they may face foreclosure.

Does a real estate promissory note need to be notarized?

The promissory note itself generally does not require notarization to be enforceable, but the mortgage or deed of trust typically does require notarization (and sometimes witnessing) to be recorded with the county. Recording requirements vary by state. As a practical matter, having both the note and the mortgage or deed of trust notarized provides stronger evidentiary value and satisfies most recording offices.

What is an escrow closing and do I need one for a seller-financed deal?

In a traditional real estate closing, an escrow or title company acts as a neutral third party that collects signed documents from both parties, verifies that all conditions are met, records the deed and mortgage or deed of trust with the county, and distributes funds. For a seller-financed deal, an escrow closing is strongly recommended even though it is not always legally required. The escrow company ensures: the deed is properly executed and recorded, the mortgage or deed of trust is recorded immediately after the deed (securing priority), the title is searched for prior liens, and title insurance is available. Skipping escrow on a real estate transaction creates title risk that can be very expensive to fix later.

Should I consult a real estate attorney for a seller-financed transaction?

Yes. Real estate transactions involve recording requirements, title insurance, due-on-sale clauses (if the property has an existing mortgage), usury laws that may apply differently to real estate loans, state-specific foreclosure procedures, and federal regulations (the Dodd-Frank Act imposes certain requirements on seller-financed residential mortgages). A real estate attorney ensures all documents are properly drafted, the lien is correctly recorded, and you are complying with applicable law. The cost of an attorney at closing is small compared to the cost of fixing a title defect or a defective lien years later.

What is a due-on-sale clause and can it affect a seller-financed deal?

A due-on-sale clause (also called an acceleration clause for sale) in an existing mortgage requires the full loan balance to be paid when the property is sold or transferred. If the seller has an existing mortgage with a due-on-sale clause, selling on a seller-financed basis without paying off that mortgage may trigger the clause, allowing the existing lender to demand immediate full repayment. Before offering seller financing, verify whether the property is free and clear or whether an existing lender's due-on-sale clause will be triggered by the sale. This is another reason a real estate attorney and title search are essential.

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