The most expensive problems in an M&A deal are usually written into the letter of intent, not discovered in due diligence. An LOI that states a headline price without defining how that price will be adjusted gives the buyer a free option to retrade later, and gives the seller almost no basis to object. The red flags that matter most are rarely dramatic. They are undefined working capital targets, exclusivity periods with no diligence milestones, financing described as “highly confident” rather than committed, earnouts summarized in a single sentence, and binding provisions that were never negotiated because both sides assumed the LOI was non-binding. Each of these is cheap to fix before signing and costly to fix afterward. Before granting exclusivity, both parties should be able to explain in writing how the purchase price converts to cash at closing and what specifically would allow the other side to walk away.
Why LOI Red Flags Outweigh the Headline Price
A letter of intent is mostly non-binding as to the transaction itself, which is exactly why parties under-negotiate it. The provisions that are typically binding, including exclusivity, confidentiality, expense allocation, and governing law, are the ones that determine leverage for the remainder of the deal. Once a seller grants exclusivity, competing bidders are gone and the buyer holds the only offer on the table.
That dynamic makes vagueness asymmetrical. Every term left undefined in the LOI becomes a term negotiated later, from a weaker position, against a counterparty who has already absorbed the cost of walking away. Our overview of LOI and purchase agreement strategies covers the mechanics of these provisions. This article covers the warning signs that a specific LOI is likely to produce a retrade, a broken deal, or a post-closing dispute.
Red Flags in the Price and Adjustment Mechanics
Most retrades happen here. A price is only meaningful once the adjustments that convert it to cash proceeds are defined.
The Purchase Price Has No Cash-Free, Debt-Free Definition
An LOI that names an enterprise value without stating that the transaction is cash-free and debt-free, and without defining which items count as debt, leaves the most consequential math unresolved. Deferred revenue, capital leases, accrued bonuses, customer deposits, and earned but unpaid commissions are all routinely reclassified as debt-like items by buyers after exclusivity begins. Each reclassification reduces seller proceeds dollar for dollar.
The Working Capital Target Is Left To Be Determined
This is the single most common retrade lever in middle-market M&A. If the LOI does not state a target working capital amount or the methodology for setting it, the buyer sets it later using whatever historical period is most favorable. Insist on a stated peg or, at minimum, a defined averaging period and a written list of accounts included in the calculation. A seasonal business without a seasonally adjusted methodology is especially exposed.
The Earnout Is Described in a Single Sentence
An earnout compressed into one line is not a term, it is a future dispute. A workable earnout requires a defined metric, the accounting basis for calculating it, the treatment of shared costs and allocations after closing, covenants governing how the buyer will operate the business during the earnout period, and the dispute resolution mechanism. Absent those, the metric that felt generous at signing becomes unreachable once corporate overhead is allocated to the acquired entity.
Escrow, Indemnity, and Insurance Terms Are Deferred Entirely
An LOI silent on escrow size, survival periods, indemnity caps, and whether representations and warranties insurance will be used guarantees a difficult negotiation later. These terms materially change net proceeds. A seller who assumed a five percent escrow and encounters a fifteen percent holdback with a two-year survival period has lost real value with no remaining leverage.
Red Flags in the Process and Timeline Terms
Process terms determine who controls the deal calendar, and control of the calendar usually determines the outcome.
Exclusivity Runs Long With No Diligence Milestones
A ninety-day or longer exclusivity period with no interim deadlines, no defined diligence request list, and no automatic termination if the buyer misses milestones transfers all timing risk to the seller. Tie exclusivity to specific dates for completing financial diligence, delivering a draft purchase agreement, and confirming financing, with the period terminating if those dates pass.
Financing Is Described as Highly Confident Rather Than Committed
Language expressing confidence in obtaining financing is not a commitment. Ask what portion of the purchase price is equity already available, whether a lender has issued a commitment letter or merely an indicative term sheet, and whether the buyer has closed comparable transactions. An unfunded buyer can occupy exclusivity for months and then reprice based on lender feedback.
Due Diligence Conditions Are Open-Ended
A closing condition resting on satisfactory completion of due diligence in the buyer’s sole discretion is not a condition, it is an unlimited walk-away right. Narrow it by defining the scope of remaining diligence and, where possible, tying termination rights to findings that exceed a stated materiality threshold.
Binding Provisions Were Never Actually Negotiated
Because parties treat the LOI as preliminary, they often sign binding terms without review. Read the expense reimbursement clause, any break fee, the non-solicitation of employees and customers, and the governing law and venue provisions with the same care applied to the price. These survive even when the deal does not.
Red Flags in What the LOI Leaves Out
Transaction Structure and Tax Treatment Go Unaddressed
An LOI that does not specify an asset sale versus a stock sale, or address purchase price allocation and any election affecting tax treatment, defers a decision worth a substantial percentage of proceeds. Structure drives after-tax outcome, and the parties’ interests here are directly opposed. Raise it before exclusivity, not after.
Management Roles and Retention Are Silent
When an LOI does not address which executives are expected to remain, on what terms, and whether employment agreements or retention pools are contemplated, the resulting ambiguity frequently derails deals late. Sellers who are also key employees should understand their post-closing role before granting exclusivity.
Quality of Earnings Expectations Are Undefined
Buyers will test the earnings figure underlying the multiple. Sellers who have not validated their own adjustments face surprises when the buyer’s analysis lands. Addressing normalization methodology early, ideally through a sell-side quality of earnings analysis, reduces the likelihood that the buyer’s buy-side diligence produces a downward revision.
Frequently Asked Questions About LOI Red Flags
Is a letter of intent legally binding?
Generally only in part. Provisions such as exclusivity, confidentiality, expense allocation, and governing law are typically binding, while the agreement to complete the transaction is not. That split is precisely why the binding provisions deserve careful review.
What is the most common LOI red flag?
An undefined working capital target. It is the most frequently used lever for reducing the effective purchase price after exclusivity has eliminated competing bidders.
How long should an exclusivity period be?
Long enough for genuine diligence and short enough to preserve seller leverage, with interim milestones rather than a single end date. What matters more than the duration is whether the period terminates automatically if the buyer misses defined checkpoints.
Should the LOI address the escrow amount?
Yes. Escrow size, survival periods, indemnity caps, and any use of representations and warranties insurance directly affect net proceeds. Leaving them entirely to the definitive agreement removes the seller’s ability to negotiate them with leverage.
How Windes Helps Buyers and Sellers Evaluate a Letter of Intent
Identifying these red flags requires reading an LOI the way a diligence team will read the business. The Windes M&A team works alongside your investment bankers and attorneys, so the terms you sign are the terms you can still defend after exclusivity begins.
- Financial and tax due diligence on both the buy side and the sell side
- Quality of earnings analysis and normalization of the EBITDA underlying the multiple
- Working capital peg and purchase price adjustment modeling
- Transaction structuring support, including asset versus stock treatment and allocation
We help buyers test whether the price they proposed survives the numbers, and help sellers enter exclusivity with defined terms rather than open questions. For owners still preparing for a transaction, our value acceleration and exit planning team can address the issues that depress valuation well before an LOI arrives.
Can you explain in writing how your headline price converts to cash at closing? Contact the Windes M&A Team to review your letter of intent before you grant exclusivity.
