TL;DR: – A letter of intent (LOI) is a mostly non-binding document that outlines your proposed deal terms before the definitive purchase agreement is signed.
- Two clauses – confidentiality and exclusivity – are typically legally binding even when everything else isn't.
- Most small business deals close 75–120 days after the LOI is signed; getting the LOI right sets the pace for everything that follows.
According to Malbek's LOI research, 15.4% of deals fail because of EBITDA discrepancies discovered during due diligence, and 12.3% collapse due to business underperformance against LOI assumptions. That means the terms you set in your letter of intent aren't just preliminary paperwork – they're the foundation your entire acquisition stands on. This guide breaks down the letter of intent to buy a business explained in plain language: what goes in it, which clauses actually bind you, how to write one, and the mistakes that cost buyers deals.
What Is a Letter of Intent to Buy a Business?
A letter of intent (LOI) is a preliminary, mostly non-binding document that outlines the key terms under which a buyer proposes to purchase a business – think of it as a handshake on paper before the lawyers draft the real contract.
As puts it, an LOI is "an 'agreement to agree' without legally binding commitments, since it declares the preliminary plan for one party to do business with another." It's not the final contract. It's the document that says: here's what we're both thinking, let's move forward.
According to Sands Anderson, "A Letter of Intent is typically the first formal step in a sale process. It is a document that outlines the key business, legal, and tax terms before a binding agreement is drawn up."
Where the LOI fits in the acquisition timeline:
- Initial contact and preliminary discussions
- NDA / confidentiality agreement signed
- Seller provides financial overview
- LOI drafted, negotiated, and signed
- Due diligence (buyer reviews books, contracts, operations)
- Definitive purchase agreement drafted
- Closing
A typical LOI runs 3–8 pages, per Acquisition Stars. It's long enough to cover the deal's key terms, short enough that both parties can negotiate it without a six-figure legal bill.
Key Takeaway: An LOI is your formal opening move in a business acquisition – it locks in the deal framework and triggers due diligence, but it's not the binding contract. That comes later.
What Should a Letter of Intent Include?
A well-drafted LOI covers every major commercial term so both parties know what they're agreeing to explore. As Guardian Due Diligence notes, "An LOI identifies issues that need resolution to reach a preliminary agreement before due diligence."
Standard LOI sections and their purpose:
| Section | Purpose |
|---|---|
| Purchase Price | States the proposed total consideration |
| Payment Structure | Breaks down cash at close, seller note, earn-out, holdback |
| Deal Structure | Asset sale vs. stock/equity sale |
| Due Diligence Period | Defines how long the buyer has to investigate |
| Exclusivity / No-Shop | Prevents seller from marketing to other buyers |
| Conditions to Close | Financing, lease assignment, key employee retention |
| Confidentiality | Protects sensitive business information |
| Transition Period | Seller's post-close involvement |
| Expense Allocation | Who pays legal, advisory, and closing costs |
| Governing Law | Which state's laws apply |
Purchase Price and Payment Structure
This is the most negotiated section of any LOI. A typical small business deal doesn't close with a single wire transfer – the purchase price is usually split across multiple components.
For example, on an $800,000 acquisition: $600,000 cash at close + $150,000 seller note (5 years at 6–10% interest, per Morgan & Westfield) + $50,000 holdback released after 90 days. The holdback protects you against post-close surprises like undisclosed liabilities.
Small Business Deal provides a real example where "$40,000 would be paid to an escrow account to be released upon the 12-month anniversary of the Closing date" and "$100,000 in the form of a Seller Note issued by Newco with a 5% interest rate."
Due Diligence Period and Exclusivity Window
Morgan & Westfield reports that most due diligence periods range from 30 to 60 days. Push for 45–60 days – shorter periods favor sellers, longer periods give you adequate time to review financials, contracts, and operations.
The exclusivity window (no-shop clause) runs separately. According to Turley Law, "The exclusivity period prevents the seller from soliciting or negotiating with other potential buyers for a defined period – usually 60 to 120 days."
Contingencies and Conditions to Close
Your LOI should list what must happen before closing: financing approval, landlord consent to lease assignment, key employee agreements, and any regulatory approvals. A financing contingency is especially critical – it protects your right to walk away without penalty if your SBA loan or other financing falls through.
Key Takeaway: The purchase price structure (cash + seller note + holdback) and due diligence period are the two most heavily negotiated LOI elements. Get both right before you sign.
Which LOI Clauses Are Legally Binding?
Most of your LOI is non-binding – but two clauses almost always carry legal teeth, regardless of what the rest of the document says.
As Anderson Leavitt explains: "Most LOIs are not legally binding, but certain clauses – such as confidentiality and exclusivity – may be enforceable."
Binding vs. Non-Binding LOI Clauses:
| Binding Clauses | Non-Binding Clauses |
|---|---|
| Confidentiality / NDA | Purchase price |
| Exclusivity / No-shop | Payment structure |
| Expense allocation | Asset list (in asset sales) |
| Governing law | Representations and warranties |
| LOI expiration date | Conditions to close |
Confidentiality: The confidentiality clause is binding from the moment you sign. It governs how you handle the seller's financial records, customer lists, and trade secrets – information you'll need to review during due diligence. Maintaining confidentiality during a business sale isn't optional once this clause is in place.
Exclusivity: This is the clause sellers feel most. Once signed, the seller cannot market the business or entertain competing offers for the defined period. Acquisition Stars confirms the typical range is 30–90 days. If a seller breaches this clause and you've already spent money on legal fees and due diligence, you can pursue reliance damages – typically $15,000–$50,000 for small business deals.
⚠️ Warning: Watch for language like "shall use best efforts to close" in your LOI. According to BDC, vague LOI language has led to court disputes when one party tried to withdraw. Phrases that imply a firm commitment can accidentally convert non-binding terms into enforceable obligations.
Turley Law provides a clean model clause: "Except for [list of binding provisions], this Letter of Intent is non-binding and does not create any legally enforceable obligation on either party to consummate the transaction described herein." Use explicit language like this.
Key Takeaway: Confidentiality and exclusivity are binding the moment both parties sign. Every other LOI term is negotiable until the purchase agreement is executed.
How Do You Write an LOI for a Business Purchase?
Writing an LOI isn't complicated, but the sequence matters. Nocturnal Legal notes that "without an LOI, there are no pre-agreed terms for the purchase agreement – meaning either party can re-open negotiations on key deal terms, which may unnecessarily increase legal costs and delay the closing."
Step-by-step LOI writing process:
- Gather your information. Collect the seller's financials (3 years of tax returns and P&Ls), the asking price, lease terms, and any known liabilities. Review documents needed to sell a business before drafting.
- Determine your offer price and structure. Decide on cash at close, seller note terms, and any holdback or earn-out components.
- Choose asset sale vs. stock sale. This affects what you're buying and what liabilities you assume. Most sub-$5M deals are asset purchases.
- Define your due diligence period. Request 45–60 days minimum.
- Set your exclusivity window. Propose 60 days; expect the seller to counter with 30–45.
- List your conditions to close. Financing, lease assignment, key employee retention.
- Draft the document. Use a reputable template as a starting point, then customize.
- Have an attorney review it. Due Dilio recommends: "If you're concerned about legal fees, consider drafting an initial version yourself using a reputable template, then having an attorney review and refine it."
Sample LOI opening paragraph:
"This Letter of Intent sets forth the general terms under which [Buyer Name] ('Buyer') proposes to acquire substantially all of the assets of [Business Name] ('Seller') for a total purchase price of $1,200,000, subject to adjustment based on due diligence findings. Buyer proposes a 45-day due diligence period commencing upon execution of this Letter of Intent."
Checklist before you draft:
- 3 years of seller tax returns and P&Ls
- Current lease agreement and expiration date
- List of included/excluded assets
- Existing contracts and customer agreements
- Any known pending litigation or liens
💡 Tip – Phrases to avoid: "Buyer agrees to purchase" (implies binding commitment), "parties shall close on [date]" (creates timeline obligation), "best efforts to consummate" (may create good-faith duty). Use "proposes to acquire" and "subject to satisfactory due diligence" instead.
Key Takeaway: Draft your LOI after gathering financials, not before. A $500–$1,500 attorney review is worth it – Sands Anderson confirms that "starting with a lawyer-reviewed LOI sets the tone for the entire transaction."
How Does an LOI Differ From a Purchase Agreement?
The LOI and the purchase agreement serve completely different functions – confusing them is one of the most common mistakes first-time buyers make.
The LOI establishes commercial intent. The purchase agreement creates legal obligation. As Nocturnal Legal explains, "a well-drafted LOI will cut down the time your lawyer spends hashing out the details needed to create the first draft of the purchase agreement."
| LOI | Purchase Agreement | |
|---|---|---|
| Purpose | Establish deal intent and terms | Create binding legal obligation |
| Binding status | Mostly non-binding | Fully binding |
| Timing | Before due diligence | After due diligence |
| Detail level | Summary (3–8 pages) | Comprehensive (30–100+ pages) |
| Reps & warranties | Not included | Fully detailed |
| Indemnification | Not included | Fully detailed |
What triggers the move from LOI to purchase agreement?
Satisfactory completion of due diligence. Once you've reviewed the financials, confirmed the lease, verified customer contracts, and resolved any issues, your attorney begins drafting the definitive purchase agreement.
Typical timeline: LOI signed Day 0 → due diligence 45 days → purchase agreement drafted Day 50 → closing Day 75–90. Turley Law confirms "most business acquisitions close 60 to 120 days after the LOI is signed." Understanding how long it takes to sell a business helps you set realistic expectations with the seller from the start.
Key Takeaway: The LOI is your roadmap; the purchase agreement is your destination. Once the purchase agreement is signed, the LOI is superseded and has no further legal effect – except for confidentiality obligations that survive.
Common LOI Mistakes Buyers Make (and How to Avoid Them)
Most LOI mistakes are avoidable – they happen when buyers rush to lock up a deal before they've done enough homework. According to Malbek, the average failed deal spent between 87 and 154 days under exclusivity before breaking down.
Six mistakes to avoid:
- Locking in a fixed price before due diligence. If the financials don't hold up, you have no mechanism to adjust. Always include language that allows price renegotiation based on material due diligence findings.
- Omitting earn-out language when financials are unverified. If the seller's revenue claims are unaudited, consider an earn-out structure tied to post-close performance. Earn-out agreements in business sales protect you when you can't fully verify historical numbers before signing.
- Accepting a due diligence period under 30 days. Morgan & Westfield notes most periods run 30–60 days. Anything shorter leaves you exposed.
- Skipping the financing contingency. Without it, you may be obligated to close even if your SBA loan falls through.
- Using vague exclusivity language. Specify the exact start date, end date, and what constitutes a breach. Ambiguity benefits the seller.
- Over-committing before due diligence is complete. Anderson Leavitt warns that "revoking an LOI after extensive negotiations may harm business relationships" – but signing one with no exit mechanism is worse.
Key Takeaway: The most expensive LOI mistake is agreeing to a fixed price with no adjustment mechanism. Always retain the right to renegotiate or terminate if due diligence reveals material discrepancies.
Working With a Business Broker on Your LOI
If you're navigating a business acquisition in Southern California or the Inland Empire, having professional guidance on your LOI can make a meaningful difference. 1-800-Biz-Broker is a business brokerage serving sellers and buyers in these markets, helping clients structure deals, prepare documentation, and move from LOI to closing efficiently.
Working with a broker doesn't mean giving up control of your LOI – it means having someone who understands local market conditions, typical deal structures, and seller expectations in your corner. Brokers familiar with the San Diego County and Inland Empire markets can help you calibrate your offer price, exclusivity window, and payment structure to what sellers in those markets actually accept.
As the International Business Brokers Association notes, brokers "provide deal structure guidance, help price offers appropriately, and manage seller relationships – factors that meaningfully affect whether an LOI is accepted."
Whether you're a first-time buyer or an entrepreneur planning a succession acquisition, getting your LOI right is worth the investment in professional support. Learn more about what a business broker does in an acquisition at 1800bizbroker.com.
Frequently Asked Questions About LOIs for Business Purchases
How much does it cost to have a lawyer draft an LOI?
Direct Answer: Attorney fees to draft or review an LOI typically range from $500 to $2,500 for straightforward small business deals, rising to $5,000–$15,000 for complex mid-market transactions.
Geography and deal complexity drive the range. A simple asset purchase LOI in a mid-sized market might cost $750 for a review-and-revise engagement. Due Dilio suggests drafting a first version yourself from a reputable template, then paying for attorney review – a practical way to manage costs without skipping legal oversight entirely.
Is a letter of intent legally binding in a business purchase?
Direct Answer: Most LOI terms are non-binding, but confidentiality and exclusivity clauses are typically enforceable as binding contracts.
Sands Anderson confirms: "Most of the time, the overall LOI is non-binding – meaning either party can walk away before signing a final agreement. But certain provisions within the LOI, like confidentiality and exclusivity, are often binding and legally enforceable." The purchase price, asset list, and deal structure remain negotiable until the definitive purchase agreement is signed.
How long does a letter of intent stay valid?
Direct Answer: Most LOIs include an expiration date of 5–10 days from presentation to the seller, after which the offer lapses unless extended.
Morgan & Westfield reports that "most expiration dates range from five to ten days." This is separate from the due diligence period – the expiration date governs how long the seller has to accept your offer, not how long you have to complete due diligence once they do.
What happens after both parties sign an LOI?
Direct Answer: Once both parties sign, the deal enters the due diligence phase – the buyer delivers a due diligence request list, the seller grants access to financial records, and both parties begin working toward the definitive purchase agreement.
Acquisition Stars maps the typical sequence: "Week 1–2: Initial negotiations and LOI drafting; Week 3: LOI execution; Week 4–8: Due diligence period; Week 6–10: Purchase agreement negotiation; Week 10–12: Financing finalization; Week 12–14: Closing preparation and execution."
Can a seller accept another offer after signing an LOI?
Direct Answer: If the LOI contains an exclusivity (no-shop) clause, the seller cannot legally accept competing offers during the exclusivity window – doing so constitutes breach of contract.
Acquisition Stars notes the exclusivity period is "typically 30–90 days." If a seller breaches this clause, the buyer can pursue reliance damages covering legal fees and due diligence costs already incurred. Without an exclusivity clause, the seller is free to continue marketing the business.
How is an LOI different from a term sheet?
Direct Answer: An LOI and a term sheet serve the same purpose – outlining proposed deal terms non-bindingly – but LOIs are standard in small business acquisitions while term sheets are more common in venture capital and private equity transactions.
notes that "LOIs are presented in letter formats, while term sheets are structured as lists." The practical difference is format and convention, not legal substance. If you're buying a Main Street or lower-middle-market business, you'll use an LOI.
Do you need a business broker to submit an LOI?
Direct Answer: No legal requirement exists to use a broker to submit an LOI, but brokers improve offer structure, pricing accuracy, and seller relationship management – all of which affect whether your LOI gets accepted.
Understanding what a business broker does in an acquisition helps you decide whether professional representation makes sense for your deal. For buyers in competitive markets like Southern California, a broker who knows local deal norms can help you structure an LOI that stands out. 1-800-Biz-Broker works with buyers and sellers across the Inland Empire and San Diego County markets.
Ready to Move Forward?
If you're preparing to submit an LOI on a business acquisition, the steps are clear: gather the financials, structure your offer with realistic payment terms, define your due diligence period, and have an attorney review the document before it goes to the seller.
The letter of intent to buy a business is your first formal commitment in the acquisition process. Get the binding clauses right – confidentiality and exclusivity – and keep the non-binding terms flexible enough to adjust after due diligence confirms what you're actually buying.
For buyers in Southern California looking for experienced guidance through the LOI and closing process, 1-800-Biz-Broker is a practical starting point. Whether you're retiring from your current business or acquiring your next one, professional support at the LOI stage can save you significant time and money down the road.