A real estate letter of intent is supposed to be a low-stakes starting point a way to get the major terms in writing before committing to a full contract. But vague language, missing expiration dates, and clauses that accidentally read like a contract have a way of turning a non-binding document into a binding one. Courts in several states, including California, have enforced LOIs as contracts even when the parties never intended them that way.
Here is exactly what a real estate letter of intent needs to say, what to keep out of it, and how to make sure the right clauses are binding while the ones that should not be stay that way.
What Is a Real Estate Letter of Intent?
A real estate letter of intent, often called an LOI is generally a one- to three-page document a prospective buyer or tenant sends to a seller or landlord, outlining the main terms they want in a future deal: price or rent, timeline, and any major conditions. It lets both sides confirm they agree on the big picture before spending time and money on a full contract, due diligence, and legal drafting.
Real estate agents, brokers, or attorneys typically draft it, and it is used in both residential and commercial transactions though it appears most often in commercial purchases and leases.
What a Letter of Intent Does Not Do
a.) It is not a purchase agreement. Signing an LOI does not commit either party to completing the transaction. The binding contract comes later.
b.)It does not lock in all terms. Even agreed-upon terms in an LOI can be renegotiated during full contract drafting though doing so becomes harder the more detailed the LOI is.
c.)It does not guarantee exclusivity unless that clause is explicitly written as binding. Without a binding no-shop clause, the seller or landlord can continue negotiating with others even after signing.
Is a Letter of Intent Legally Binding in Real Estate?
Generally, no not on the core deal terms such as price or closing date. But the label on the document is not the final word. Courts generally look at whether the parties intended to be bound and whether the letter already contains the deal's essential terms. If both are present, a court can enforce an LOI as a contract even if it was never meant to be one.
In practice, most real estate LOIs are written as hybrid documents. The main business terms are non-binding, while a handful of specific clauses are deliberately written to be binding regardless of what happens with the rest of the deal:
● Confidentiality obligations — preventing either party from disclosing deal terms to outside parties
● Exclusivity or no-shop period — the seller or landlord agrees not to negotiate with others for a set time
● Non-circumvention provisions — preventing a party from cutting out the other to deal directly with a third party
● A duty to negotiate in good faith — which some states recognize even without express language
● Governing law and general provisions
Actions can also override wording. Announcing a deal publicly or relying on a promise to one's detriment can sometimes make a supposedly non-binding term enforceable under a theory called promissory estoppel. Some states — California among them — have held that a real property agreement does not need to be drafted with technical precision to be enforced, which generally lowers the bar for an LOI to be treated as binding by accident.
Draft Your Real Estate Letter of Intent
Put your proposed price, timeline, and key terms in writing with a clear, professional letter of intent.
Letter of Intent vs. Purchase Agreement
People often treat these two documents as interchangeable steps in a deal. They serve entirely different purposes.
The LOI establishes the framework. The purchase agreement is the deal itself. Treating the LOI as the deal — or acting on its terms as though it were binding — is one of the most common ways parties end up in disputes before a contract is ever signed.
LOI to Purchase Real Estate vs. LOI to Lease Commercial Property
A purchase LOI and a lease LOI cover different ground because the deals themselves work differently.
Letter of Intent to Purchase Real Estate Generally Covers
● Property address and legal or parcel description
● Purchase price and earnest money deposit
● Due diligence period length
● Target closing date
Letter of Intent to Lease Commercial Property Generally Covers
● Lease length, including any renewal options
● Base rent and any additional charges
● Square footage and permitted use
● Security deposit
● Tenant improvement allowance, if any
Because a lease LOI often becomes the outline the final lease is drafted from, landlords and their attorneys are sometimes reluctant to revisit terms once they are in writing — even though the document is technically non-binding. It is worth treating the terms in a lease LOI as terms you are fairly likely to end up with.
Who Sends a Letter of Intent, the Buyer or Seller?
By convention, the buyer or tenant side generally sends the first letter of intent, often drafted by their broker or attorney after touring the property and having informal conversations with the owner.
That said, either side can technically prepare one. Some landlords draft their own LOI to present to a prospective tenant, particularly in competitive commercial markets where they want to control the initial framework.
Because the document is generally non-binding on the main deal terms, who signs it first is far less important than what it says.
What Should Be Included in a Real Estate Letter of Intent?
The following fields belong in every real estate LOI, whether for a purchase or a lease:
● Full legal names of both parties
● Property address and description
● Proposed price or rent, and deposit amount
● Financing or contingency terms
● Due diligence period or key dates
● Closing date or lease commencement date
● Exclusivity or no-shop period, if any
● Confidentiality clause, if needed
● A clear statement of which provisions, if any, are meant to be binding
● An expiration date for the letter itself
That last point matters more than people expect. Without a clear expiration date, it can be unclear how long an offer in an LOI actually stands — and a party who sits on an LOI without responding can sometimes argue the offer is still open.
How Long Is a Real Estate Letter of Intent Valid?
There is no fixed legal answer. The parties set their own expiration date inside the document.
In practice, initial acceptance windows commonly run from a couple of days up to about two weeks. The broader negotiation or exclusivity period built into an executed LOI typically runs from 15 to 60 days before a binding contract must be signed or the LOI lapses.
These figures are an industry convention rather than a fixed legal rule. Always check the specific expiration date written into your own letter rather than assuming a standard timeframe applies.
Common Mistakes That Lead to Disputes
Most LOI disputes trace back to the same small set of drafting problems. Here is what to watch for:
1. Vague Language
Phrases like “reasonable time” or “to be agreed upon” leave room for disagreement later. If a term matters, define it — even in a non-binding document.
2. Not Separating Binding From Non-Binding Terms Clearly
Courts then have to guess at intent from emails, conduct, or the document itself. An explicit statement — such as “Sections 1 through 5 of this letter are non-binding. Sections 6 and 7 are binding obligations of the parties” — removes the ambiguity.
3. Using Contract-Style Language
Words like “contract” or “agreement,” or phrases such as “subject to attorney approval,” can accidentally suggest the parties intended to be bound. Use language like “proposed terms” and “non-binding letter of intent” consistently throughout.
4. Overlooking the Exclusivity Clause
A seller who agrees not to show the property to others can be liable for breaking that promise — even if the rest of the LOI is non-binding. If an exclusivity clause is included, both parties need to understand it is generally enforceable as written.
5. Acting Inconsistently With Non-Binding Language
Publicly announcing a deal, making financial commitments based on the LOI, or otherwise acting as though the deal is done can sometimes make a term enforceable despite the wording. Proceed with appropriate caution until a binding agreement is signed.
Start My Letter of Intent
Build a professional, clearly structured LOI with the terms that matter — and the binding language where it belongs.
Do You Need a Lawyer to Draft a Letter of Intent?
Not always. Because a real estate LOI is generally non-binding, brokers, agents, and property owners routinely draft one without an attorney, and using a clear template is often enough for a straightforward deal.
That said, attorney review is generally worth the cost once a transaction becomes complex, involves a large purchase price, or when either side wants a specific clause — such as exclusivity or confidentiality — to be enforceable. A quick attorney review before sending or signing is a reasonable middle ground if you are unsure whether your situation is straightforward.
What to Do If the Other Party Backs Out After an LOI
If the main deal terms were non-binding and no exclusivity clause was in place, the other party generally has the right to walk away without liability — that is the nature of a non-binding document.
If a binding exclusivity clause was in place, the party that violated it may be liable for breach. Document the violation in writing immediately and consult an attorney about available remedies before taking any other action.
If the other party publicly announced the deal or made representations that caused you to spend money in reliance on the LOI, a claim under promissory estoppel may be worth exploring with an attorney, depending on your state's law.
If the LOI is detailed enough that a court might treat it as a contract, the analysis becomes more complex. Whether the letter is enforceable depends on the specific language used, the parties' conduct, and the law of the state where the property is located.
Conclusion
A real estate letter of intent works as intended when the binding and non-binding clauses are clearly separated, an expiration date is included, and no one acts as though the deal is done before a purchase agreement is signed. The mistakes that turn LOIs into disputes are almost always drafting problems — not bad faith.
360 Legal Forms provides attorney-vetted LOI templates that give you a clean, professional starting point so the negotiation moves forward instead of sideways.
Bibliography
2. Letter of Intent for a Commercial Lease — Nolo. Accessed July 2026.
4. Real Property Letter of Intent — 360 Legal Forms. Accessed July 2026.
5. Mortgage Agreement — 360 Legal Forms. Accessed July 2026.
6. Residential Lease Amendment — 360 Legal Forms. Accessed July 2026.
Disclaimer: 360 Legal Forms is not a law firm and does not provide legal advice. This guide is for general informational purposes only. Contract enforceability rules vary by state. Consult a licensed real estate attorney for advice specific to your transaction.
