Why Business Sales Fall Through: 7 Reasons Deals Die Between LOI and Close (2026)

Roughly 30% of signed Letters of Intent in lower middle-market M&A never reach close. That’s the headline number from observed deal data — one in three deals that look like they’re going to happen, don’t. The rate is higher in SBA-financed sub-$1M deals (closer to 40%) and lower in cash-rich strategic deals (closer to 15%). But the pattern is consistent: a meaningful share of deals die after both parties have invested months of work and tens of thousands of dollars in legal and accounting fees.

The good news: deals don’t fail randomly. Across thousands of observed transactions, the failure modes cluster into seven recurring patterns — financing, re-trade, customer concentration, key person loss, material adverse change, legal surprise, and working capital fight. Each has a known probability, known prevention steps, and known mitigation tactics if the trigger fires mid-deal. Owners who treat these as known risks rather than bad luck close at materially higher rates.

This guide is for owners somewhere between “considering selling” and “in active diligence.” We’ll walk through each of the seven reasons in order of frequency, with the typical probability, the prevention steps that materially reduce risk, and the response framework if the trigger fires while you’re mid-deal. The framework draws on direct work with 76+ active U.S. lower middle market buyers and the patterns we see across the deals we run. We’re a buy-side partner. The buyers pay us when a deal closes — not you.

One thing to internalize before you read further. “We’ll deal with that in diligence” is the most expensive sentence in M&A. Diligence isn’t the place to discover problems; it’s the place where unsolved problems kill deals. Every reason below has a pre-LOI fix that costs a fraction of what dealing with it post-LOI does. Read this with a notebook open and an eye toward what you’d need to fix in the next 60-90 days.

“The single most expensive sentence in M&A is ‘we’ll deal with that in diligence.’ Diligence isn’t the place to discover problems — it’s the place where unsolved problems kill deals. Owners who close cleanly fix the seven known fall-through triggers before going to market. The ones who don’t spend 6 months and $200K finding out the hard way. A buy-side partner who knows the buyers personally is the simplest way to compress that risk.”

Key Takeaways

• Approximately 30% of signed LOIs don’t close — higher in SBA deals (~40%), lower in cash strategics (~15%).
• The seven dominant fall-through triggers: financing collapse, re-trade, customer concentration, key person loss, material adverse change, legal surprise, working capital fight.
• Buyer financing falls through in 15-25% of SBA deals — usually credit, cash flow, or appraisal issues. Mitigate with pre-qualified buyers and financing contingency wording.
• Re-trades hit 30-40% of LOIs at 5-15% reductions. Prevent with QoE-survivable books and clear add-back documentation.
• Customer concentration above 25% is a leading killer. Diversify or contract-lock concentrated customers 12+ months pre-sale.
• Working capital fights cause more last-week deal deaths than any other single issue. Negotiate the target inside the LOI, not at close.

How often do business sales actually close? The base rates

Across observed lower middle-market deal data, roughly 65-75% of signed LOIs close. Put another way: 25-35% don’t. The rate varies meaningfully by deal segment. Cash-strategic deals close at 80-85% (no financing risk, sophisticated buyer). LMM PE platform deals close at 70-80% (financing usually committed, but re-trade risk higher). SBA-financed sub-$1M deals close at 55-65% (financing contingencies + smaller margin for error).

The fall-through rate is concentrated in specific moments, not spread evenly. The riskiest 90-day window is between LOI signing and definitive purchase agreement — this is when QoE happens, customer calls happen, lender underwriting happens, and any of the seven triggers can fire. Roughly 80% of fall-throughs happen in this window. The remaining 20% split between pre-LOI (deal never gets to LOI) and post-SPA (working capital fights, last-minute lender denial, MAC clause invocation).

Most fall-throughs happen for one of seven reasons. We’ll walk through them in rough frequency order. None of them is exotic. None of them is bad luck. All of them are knowable in advance, and most of them are preventable with 90-180 days of pre-LOI preparation. The owners who close cleanly are not the ones with luckier deals — they’re the ones who fixed the known risks before going to market.

Reason 1: buyer financing falls through (15-25% of SBA deals)

Financing failure is the single most common fall-through trigger in sub-$10M deals. In SBA-financed transactions, 15-25% of LOIs die because the buyer’s loan gets denied or restructured. In LMM PE deals, financing is usually committed at LOI but can still fall apart if leverage covenants tighten, the lender re-prices, or the deal’s leverage ratio breaches what the bank will support post-diligence.

Why SBA loans get denied. Three patterns dominate. First, buyer credit issues — the bank pulls a sharper credit report than the buyer disclosed at LOI, finds undisclosed debt or a tax lien, and pulls the offer. Second, business cash-flow weakness — the bank’s underwriter calculates debt service coverage ratio and finds the deal doesn’t support 1.25x DSCR after debt service. Third, appraisal issues — the bank-ordered business valuation comes in below the LOI price, forcing either a price reduction or the buyer putting more equity in.

Why LMM PE financing falls through. Senior lenders re-price between LOI and close more often than sellers realize. The deal that was 4.5x leverage at LOI becomes 4.0x at the bank credit committee, leaving a $1-3M equity gap the PE buyer has to fill from somewhere. Sometimes they fill it (deal closes at slightly different terms). Sometimes they don’t (deal dies or re-trades). MAC clauses in lender commitment letters give banks an out if business performance deteriorates mid-deal.

Prevention: pre-qualify the buyer before signing the LOI. For SBA deals: ask the buyer to provide a pre-approval letter from their SBA lender (not just a personal financial statement). The pre-approval should reference the specific deal size and target. For PE buyers: ask for evidence of committed financing — a signed term sheet from a senior lender, not just a soft conversation. For independent sponsors: insist on naming the specific capital sources (which family office, which fund) before exclusivity. A buyer unwilling to share this information at LOI is a buyer whose financing is fragile.

Mitigation: structure the LOI to limit your downside. Make the financing contingency time-bounded (typically 60-90 days, not open-ended). Include a break fee or earnest money deposit ($25-100K) that the buyer forfeits if they fail to close on financing terms substantially similar to the LOI. Reserve the right to talk to backup buyers during the financing contingency period — many sellers grant total exclusivity and lose all leverage when financing wobbles.

If financing falls through mid-deal: first, find out specifically why. SBA denials can sometimes be cured by switching lenders — not all SBA banks underwrite identically, and a deal denied at one lender may close at another (3-4 weeks lost vs deal death). Senior debt re-pricing can sometimes be cured by adding a unitranche or mezzanine layer. Buyer credit issues are usually fatal — move on. The fastest path is having a backup buyer warm in the background who can be activated within 30 days.

Reason 2: re-trade after diligence (30-40% of deals)

Re-trade is when the buyer reduces price after LOI based on something they found in diligence. It’s the most common single intervention against the original deal — 30-40% of LMM deals get re-traded by 5-15% between LOI and close. Most re-trades stick (the seller accepts because they’ve burned 60-90 days of exclusivity and don’t want to restart). Re-trades over 20% are typically deal-killers — either the buyer was negotiating in bad faith from the start, or the diligence finding is so material the deal can’t survive.

What triggers a re-trade. Quality of Earnings disagreements (QoE backs out add-backs the seller claimed; adjusted EBITDA drops; multiple stays the same; price drops). Customer concentration discovered or quantified (one customer is 40% of revenue, not 25% as represented). Working capital normalization disputes (buyer’s working capital target is $400K below seller’s expectation). Market shifts (industry data softens between LOI and close). Sometimes simple buyer’s remorse dressed up as a diligence finding.

Your leverage to refuse a re-trade depends on three things. First, do you have a real backup buyer? Not a hypothetical one — an actual second bidder who said ‘come back if the first deal falls apart.’ Second, what does your LOI say about good faith and exclusivity? A well-drafted LOI with a 60-day exclusivity (not 120-day) and explicit good-faith language gives you teeth. Third, how much have you invested in the deal already? A seller who’s spent $300K on legal and accounting will accept a re-trade most sellers who’ve spent $50K wouldn’t.

Response framework: separate fact-based concerns from negotiating tactics. When a re-trade lands, ask the buyer to specifically tie the price reduction to a diligence finding with a dollar amount. ‘Customer X is 35% of revenue, not 25%, so we discount EBITDA by $X’ is fact-based. ‘The market has softened so we need 10% off’ is a negotiating tactic. Accept the fact-based concerns where the math is honest; reject the tactics. Always go back to comparable transactions: ‘deals at this size, this industry, with this growth rate transact at this multiple range.’

Quantify the re-trade in absolute dollars, not percentages. ‘10% off’ sounds reasonable. ‘$1.2M off’ sounds enormous. Reframe every re-trade conversation in dollars to anchor the buyer to the size of what they’re asking for. This single move tends to reduce re-trade demands by 30-50% in negotiated outcomes.

Walk threshold: above 20%, the deal probably can’t be saved. If the re-trade demand is more than 20% of the LOI price, you’re probably looking at either a buyer who was negotiating in bad faith from the start or a diligence finding so material the original LOI was simply wrong. Walk and reset. The cost of restarting the process (3-6 months, $50-150K of incremental fees) is usually less than the cost of accepting a 20%+ re-trade and dealing with that buyer’s post-close behavior.

Reason 3: customer concentration discovered in diligence

Customer concentration is the most common re-trade trigger in LMM deals. If a single customer is more than 25% of revenue, or the top three customers are more than 50%, you have concentration risk that buyers price aggressively. The problem isn’t just that the deal gets re-priced — it’s that concentration sometimes outright kills deals when the concentrated customer becomes addressable in diligence and won’t commit to a forward contract.

Why concentration shows up in diligence rather than pre-LOI. Most CIMs report customer concentration at the rolled-up annual level: ‘top customer 22%.’ Diligence runs the analysis at the gross-margin level, the trailing-twelve-months level, and the contracted-vs-spot-revenue level. A customer that’s 22% of revenue can be 38% of gross margin (because they’re a higher-margin customer), or 28% of TTM (because they’ve grown), or 100% of contracted revenue (because everything else is spot). Each of those reframes triggers a different price reaction.

Prevention: do your own concentration analysis 6-12 months pre-sale. Run the analysis the way QoE will run it. Customer concentration on revenue, gross margin, and TTM. Compare against your industry’s typical concentration tolerance (route-density services: 30%+ acceptable; SaaS: 15%+ flagged). Identify the top 3-5 customers that drive concentration and decide what to do about each: contract-lock, diversify away from, or accept and adjust expectations.

Contract-locking concentrated customers. If your top customer is on a month-to-month relationship, see if they’ll sign a 2-3 year contract with annual price escalators. The contract doesn’t need to be massively favorable to you — even a renewal-with-90-day-notice replaces ‘could leave tomorrow’ with ‘has to give 90 days notice.’ Buyers value the certainty meaningfully. The same customer at 30% of revenue is a 1x multiple compression with no contract and a 0.25x compression with a 3-year contract.

Diversification timeline. If your top customer is 40% of revenue and there’s no contract, structural diversification takes 12-24 months. Aggressive new-customer acquisition. Sometimes intentional volume reduction with the concentrated customer (controversial but works). The trade-off: 12-24 months of growth investment vs the 0.5-1.0x multiple compression you’ll otherwise eat at sale.

If concentration shows up mid-deal: have a contracted-revenue overlay ready. ‘Yes, customer X is 30% of revenue, but they’re on a 3-year contract with 18 months remaining and a 5% escalator. Loss probability over the contract term is X%. Adjusted concentration risk is materially lower than the headline number suggests.’ Buyers respond to data more than to assertions. The reframe doesn’t eliminate the concern but typically cuts the price impact in half.

Reason 4: key employee or family member exits during the process

Key person loss during diligence is one of the most under-anticipated fall-through triggers. It typically plays out one of three ways. (1) An operations manager or key sales lead figures out a sale is happening, gets nervous, and takes another offer. (2) A family member who’s been working in the business for 15 years has a falling-out with the seller during the high-pressure deal period and walks. (3) A second-tier executive who was assumed to be staying tells the buyer in a diligence call they don’t actually plan to stay.

Why this kills deals. Buyers price the business assuming the second-tier team stays through a transition period. If your COO leaves the week before LOI, the buyer’s underwriting model breaks — their growth thesis, their integration plan, their financing all assumed continuity. Sometimes the deal can be repriced (lower multiple to account for now-empty COO seat). Sometimes it can’t (PE buyer with a 3-month integration sprint can’t absorb the disruption). Either way it’s a 4-12 week setback minimum.

Prevention 1: confidentiality structure that limits leak risk. Most key-person exits happen because someone figured out a sale was coming. Tier the information access carefully — we cover this in detail in how to keep a business sale confidential from employees. The fewer people who know during diligence, the lower the probability of a panicked exit.

Prevention 2: stay bonuses for the 3-7 most critical people. Identify the people whose departure would re-price or kill the deal. Offer a stay bonus — typically 25-50% of annual comp paid 90 days post-close, contingent on staying through that date. Combined cost is usually $150-500K depending on team size and comp levels. That’s a fraction of what the alternative costs. The bonuses can be paid by the seller pre-close or rolled into the deal as a buyer obligation.

Prevention 3: buyer meetings with key staff under controlled conditions. Most diligence calls with key staff happen 30-60 days into diligence. By then, the staff has been told about the sale (typically) and has had time to think about whether they want to stay. If a key person is wavering, you want to know before LOI signing, not 75 days into exclusivity. Some sellers structure brief, anonymized buyer meetings with key staff in the LOI period to surface flight risk early.

If a key person exits mid-deal: speed of disclosure to the buyer matters. Tell them within 48 hours, with a plan: who will fill the role on an interim basis, what the recruiting timeline is for permanent replacement, and what the financial impact looks like. Buyers who learn about a key-person exit through their own diligence (a customer mentions it on a call, an employee LinkedIn update gets noticed) lose trust catastrophically. Buyers who hear about it from the seller with a plan often work through it.

Reason 5: material adverse change — sales drop or customer loss mid-deal

Material Adverse Change (MAC) clauses give the buyer the right to walk if business performance deteriorates between LOI and close. Definitions vary — tightly drafted MACs require specific quantitative thresholds (revenue down more than X% over a 60-day period); loosely drafted MACs are subjective (‘any change reasonably likely to have a material adverse effect’). The looser the MAC, the more leverage the buyer has to walk or re-trade for any reason.

What triggers MAC invocation in practice. A 10-20% revenue drop over 60-90 days. Loss of a top-five customer mid-deal. A major lawsuit filed. A regulatory action against the business or its industry. Sometimes broad market events (COVID-era deals saw widespread MAC invocations as a category). The threshold is whether the change is meaningful enough that the deal’s economics fundamentally shifted.

Owners often forget that diligence happens against a moving target. Most LOIs are signed off TTM financials at the moment of signing. By the time the deal closes 90-180 days later, those financials are 3-6 months stale. If the business has slipped, the buyer notices — either through the rolling QoE update or through the monthly P&Ls they request during diligence. A business that was tracking $4.5M EBITDA at LOI and $4.0M EBITDA at close has effectively re-priced itself by 10-15%.

Prevention: keep the business performing through the deal. Sounds obvious; isn’t. Owners get distracted by diligence (50-100 hours/week of interruption), travel for buyer meetings, and the emotional weight of selling. Sales meetings get missed. Operational decisions get deferred. Customer issues don’t get attention. Hire interim help if needed — a fractional COO or a sales VP who can keep the business running while you focus on the deal. The cost ($30-80K) is dwarfed by the alternative.

Negotiate the MAC clause carefully at LOI. Push for quantitative thresholds. ‘A revenue decline of 15% or more on a TTM basis over a 60-day period, excluding seasonal effects and changes attributable to the deal process’ is much better protection than ‘any material adverse change.’ Carve out from MAC: changes in industry conditions, changes in macroeconomic conditions, and changes attributable to the announcement of the deal itself. The MAC carve-outs are often the most negotiated clause in the entire purchase agreement.

If a MAC trigger fires mid-deal: be transparent about it. The buyer will find out. The question is whether they hear it from you (with a plan and context) or through their own monitoring (without context, with worst-case assumptions). Sometimes a MAC can be cured by extending the timeline (let the business stabilize for 60-90 days; close from a fresher baseline). Sometimes it requires a re-trade. Sometimes it’s genuinely deal-killing. The earlier the conversation, the more options exist.

Reason 6: legal surprise — litigation, environmental, or IP defects

Legal surprises in diligence kill deals at higher rates than most owners expect. The pattern: owner forgets about a 3-year-old lawsuit, a former employee EEOC complaint, an environmental issue from a previous tenant, or an IP question that was never properly resolved. Counsel runs diligence searches and surfaces it. The buyer’s reaction depends on severity: minor issues get indemnified; medium issues re-trade the deal; major issues kill it.

Categories of legal surprises that derail deals. (1) Pending or threatened litigation that wasn’t disclosed pre-LOI. (2) Environmental exposure on owned real estate — legacy contamination, underground tank issues, asbestos in older buildings. (3) IP defects — trademark not properly registered, software code in personal repositories, founder owns a key asset personally. (4) Tax exposure — unfiled state tax returns, sales tax nexus issues, payroll tax irregularities. (5) Employment law exposure — misclassified contractors, wage-and-hour issues, pending EEOC complaints. (6) Customer or supplier contracts with change-of-control clauses that haven’t been thought through.

Prevention: do your own legal diligence 90-180 days pre-market. Hire an M&A attorney to run a pre-emptive diligence package: lien searches, litigation searches, IP audit, contract review for change-of-control clauses, employment classification review, environmental Phase I if you own real estate. Cost: $15-40K depending on business complexity. This finds 80% of the issues that would otherwise surface in buyer-side diligence and gives you 6+ months to fix them before going to market.

IP cleanup gets its own treatment. We cover this in depth in protecting intellectual property in business sale, but the headline: if your trademark is registered to you personally rather than the business, your customer list is held in a personal Salesforce account, or your software code is in a founder’s personal GitHub, fix these before going to market. Each one is a 5-15% re-trade trigger when it surfaces in diligence.

If a legal issue surfaces mid-deal: the playbook depends on severity. Minor issues (small claim, settled but undisclosed lawsuit) get handled with indemnification language — seller indemnifies buyer for X dollars over Y years for this specific exposure. Medium issues (open EEOC complaint, environmental Phase II finding) require an escrow or reserve from the deal proceeds. Major issues (criminal investigation, large pending litigation, IP fundamentally not owned) often require the deal to pause until the issue is resolved — which usually means it dies.

Reason 7: working capital fight at close

The single most common last-week deal blow-up is a working capital dispute. The deal has gone through 90+ days of diligence. The purchase agreement is signed. The closing is scheduled for Friday. On Wednesday, the buyer’s accounting team delivers the closing working capital calculation and it’s $400-800K below what the seller expected. The seller refuses to close. Lawyers re-engage. The deal either bridges a compromise or implodes.

Why working capital fights happen so often. Most LOIs say something like ‘subject to a normal level of working capital’ or ‘working capital target to be agreed in the SPA.’ That language is a landmine. ‘Normal’ is in the eye of the beholder. The buyer’s definition uses a trailing 12-month average (which captures any seasonal lows). The seller’s definition uses a current snapshot or a peak. The gap is often 10-20% of working capital — in absolute dollars, $200-800K on a typical LMM deal.

Prevention: agree the working capital target in the LOI, not at close. The LOI should specify (a) the methodology for calculating working capital (TTM average, latest month, or a specific formula), (b) the target dollar amount or the range, and (c) the true-up mechanic if actual working capital at close differs from the target. This conversation is uncomfortable at LOI — both sides want to delay it. Resist that. Every dollar of clarity in the LOI saves five dollars of negotiation at close.

Understand what working capital means in your business specifically. Working capital is roughly accounts receivable + inventory – accounts payable – accrued expenses. Different businesses have very different working capital profiles. A service business may run on 30 days AR and 15 days AP. A distribution business may run on 60 days AR, 90 days inventory, and 45 days AP. Seasonal businesses vary 30-50% across the year. The right target depends on what’s normal for your business, not a generic rule of thumb.

Mid-deal fix: agree the methodology in writing as soon as it surfaces. If you didn’t lock the working capital target in the LOI, the next opportunity is the first 30 days of diligence. The buyer’s QoE provider will produce a working capital normalization analysis. Engage with it actively. Push back on the methodology where it’s unfavorable. Document the agreed methodology in an email exchange with both attorneys copied. Once the methodology is agreed, the dollar figure becomes mechanical — not a negotiation.

The pre-LOI checklist that prevents 60-70% of fall-throughs

Most fall-through risk is addressable in 90-180 days of pre-LOI work. The owners who close cleanly do this work before going to market. The owners who struggle skip it and discover the same issues during diligence under time pressure with all leverage already given away. The list below is the minimum viable pre-LOI cleanup that materially reduces fall-through risk.

Financial readiness checklist. (1) 36 months of monthly P&Ls reconciled to bank and tax returns. (2) Add-back schedule with line-item documentation (receipts for personal expenses, board resolutions for one-time items). (3) Customer concentration analysis at revenue, gross margin, and TTM levels. (4) Working capital normalization analysis using the same methodology QoE will likely use. (5) Accounts receivable aging with collection probability assessments. (6) Inventory analysis with obsolete/slow-moving carve-out.

Legal readiness checklist. (1) Pre-emptive lien and litigation search. (2) Trademark, copyright, and patent registry verification. (3) IP ownership audit (anything in the founder’s name personally?). (4) Material contract review with change-of-control flagging. (5) Employee classification review (W-2 vs 1099). (6) Environmental Phase I if you own real estate. (7) Tax compliance review — state nexus, sales tax, payroll tax.

Operational readiness checklist. (1) Stay bonus structure for the 3-7 most critical people. (2) Confidentiality tiering plan (who knows when). (3) Customer-contract upgrade plan (month-to-month to multi-year where possible). (4) Supplier-contract change-of-control review. (5) Backup buyer relationship maintained throughout exclusivity period. (6) Interim management bench in case of mid-deal departure.

LOI structure checklist. (1) Time-bounded financing contingency (60-90 days, not open-ended). (2) Earnest money deposit (forfeitable if buyer fails to close on financing). (3) Quantitative MAC clause (specific revenue thresholds, not subjective standards). (4) Working capital target locked at the LOI stage with explicit methodology. (5) Exclusivity period 60 days max, with renewal triggers tied to good-faith milestones. (6) Carve-out for talking to backup buyers if buyer materially deviates from LOI terms.

How buy-side partners reduce fall-through risk vs sell-side processes

Sell-side broker processes optimize for one thing: getting an LOI signed. The broker’s success fee is contingent on close, but the immediate incentive is to generate offers. Brokers run wide auctions, push for highest headline price, and accept LOI terms that look good on paper but are poorly structured to survive diligence. The result: more LOIs signed, but a meaningful share of them die in diligence due to mismatched expectations or financing fragility.

Buy-side partners optimize differently. When the buyer pays the intermediary on close, the intermediary wants the deal to actually close — which means matching well-prepared sellers with well-funded buyers, structuring LOIs that survive diligence, and walking away from deals that won’t close rather than chasing fragile ones. The fall-through rate on well-matched buy-side-introduced deals tends to run materially lower than on sell-side auction processes.

What this means for sellers in practice. A buy-side partner can pre-qualify the buyer’s financing, vouch for the buyer’s reliability based on prior deals, structure the LOI in a way that protects both sides, and surface diligence issues earlier when there’s still leverage to address them. The seller still gets price competition (buy-side partners typically run 3-5 buyer conversations in parallel), but with much higher close conviction on each path.

The fee structure aligns the incentives. Sell-side: you pay 8-12% of the deal as a success fee plus monthly retainer. Buy-side: the buyer pays the partner; you pay nothing. No retainer, no exclusivity, no contract. If a deal doesn’t close, you didn’t pay anything. If it does close, the price you negotiated is the price you keep — the fee comes out of the buyer’s side.

Conclusion

Roughly 30% of business sales fall through — but they don’t fail randomly. Across thousands of observed deals, the failure modes cluster into seven recurring patterns: financing collapse, re-trade, customer concentration, key person loss, material adverse change, legal surprise, and working capital fight. Each has a known probability, known prevention steps, and known mitigation tactics. Owners who treat these as known risks rather than bad luck close at 80%+ rates. Owners who treat them as bad luck close at 55-65% rates. The difference between the two outcomes is 90-180 days of pre-LOI preparation: clean books, customer-concentration analysis, key-person stay bonuses, pre-emptive legal diligence, locked working capital target. Do this work before going to market and you eliminate 60-70% of fall-through risk before a buyer ever sees your CIM. If you want help thinking through which of the seven triggers apply to your specific deal — and which buyers fit your goals — we’re a buy-side partner: the buyers pay us, not you, no contract required.

Frequently Asked Questions

What percentage of business sales fall through?

Across observed lower middle-market deal data, roughly 25-35% of signed LOIs don’t close. Cash-strategic deals close at 80-85%. LMM PE platform deals close at 70-80%. SBA-financed sub-$1M deals close at 55-65%. Roughly 80% of fall-throughs happen between LOI signing and definitive purchase agreement — the diligence and underwriting window.

Why did my buyer back out after LOI?

Most likely one of seven reasons in rough frequency order: (1) buyer’s financing fell through; (2) diligence surfaced an issue that drove a re-trade attempt; (3) customer concentration worse than represented; (4) a key employee or family member exited; (5) business performance deteriorated mid-deal (MAC); (6) a legal issue (litigation, environmental, IP, tax) surfaced; (7) working capital negotiation broke down at close. The buyer may not articulate it as one of these — they may just say ‘market conditions’ or ‘timing’ — but the actual mechanism is almost always one of the seven.

How do I prevent my business sale from falling through?

Spend 90-180 days on pre-LOI cleanup. Get books to QoE-survivable standard with documented add-backs. Run your own customer concentration analysis at revenue, gross margin, and TTM levels. Set up stay bonuses for the 3-7 most critical people. Do pre-emptive legal diligence (lien search, litigation search, IP audit, environmental Phase I if applicable). Lock the working capital target inside the LOI rather than ‘to be agreed.’ Negotiate quantitative MAC thresholds. Time-bound the financing contingency. This pre-work eliminates 60-70% of fall-through risk.

How often do SBA loans fall through during business acquisitions?

Roughly 15-25% of SBA-financed business acquisitions experience financing problems between LOI and close. The most common reasons: buyer credit issues uncovered by the bank’s sharper credit pull; debt service coverage ratio shortfalls when the bank runs its own underwriting; appraisals that come in below the LOI price. Some can be cured by switching SBA lenders (3-4 weeks lost); some are fatal.

What is a re-trade in M&A?

A re-trade is when the buyer reduces the offered price after LOI based on something they found in diligence. Roughly 30-40% of LMM deals get re-traded by 5-15% between LOI and close. Common triggers: QoE adjustments to add-backs, customer concentration discovered, working capital normalization disputes, market shifts. Re-trades over 20% are typically deal-killers. We cover the response framework in how to handle a re-trade in business sale.

Can a buyer walk away after signing an LOI?

Usually yes, depending on LOI structure. Most LOIs are non-binding except for specific provisions (exclusivity, confidentiality, expense allocation, sometimes earnest money). The buyer can typically walk for any reason during the financing or diligence contingency period. The seller’s protection comes from earnest money deposits, break fees, and good-faith language in the LOI — all negotiable but most owners don’t push for them. A well-drafted LOI with $50-100K of forfeitable earnest money cuts buyer-side fall-through risk meaningfully.

What is a Material Adverse Change clause?

A Material Adverse Change (MAC) clause gives the buyer the right to walk if business performance deteriorates between LOI and close. Tightly drafted MACs require specific quantitative thresholds (e.g., revenue down more than 15% over 60 days). Loosely drafted MACs are subjective (‘any change reasonably likely to have a material adverse effect’). The carve-outs from MAC — industry conditions, macroeconomic events, deal-announcement effects — are typically the most negotiated clauses in the entire purchase agreement.

How does customer concentration kill deals?

Customer concentration above 25% from a single customer or 50% from the top three is a leading re-trade trigger. The problem isn’t just that the deal gets re-priced — it’s that diligence often runs concentration analysis at a more granular level than the CIM (gross margin, TTM, contracted revenue), and a customer that’s 22% of revenue can be 38% of gross margin. Prevention: run your own concentration analysis 12 months pre-sale, contract-lock concentrated customers, or accept the multiple compression.

Why do working capital disputes blow up deals at close?

Most LOIs say ‘subject to a normal level of working capital’ without specifying methodology. The buyer’s definition (TTM average, capturing seasonal lows) and the seller’s definition (current snapshot, capturing peaks) often differ by $200-800K on a typical LMM deal. The fix: agree the working capital target inside the LOI — specific methodology, specific dollar amount, specific true-up mechanic. This conversation is uncomfortable but every dollar of LOI clarity saves five dollars of close-week negotiation.

Should I have a backup buyer during exclusivity?

You can’t actively negotiate with a backup buyer during exclusivity, but you can maintain the relationship. A good buy-side partner keeps 2-3 alternative buyer conversations warm in the background — not as active negotiations but as ‘we’ll let you know when this exclusivity period ends.’ If your primary buyer falls through, you can re-engage in 30-45 days rather than restarting the 6-9 month process. This is meaningful leverage during re-trade negotiations and the single biggest reason buy-side-managed processes have higher close rates than sell-side auctions.

What does ‘deal mortality’ mean in M&A?

Deal mortality is the percentage of LOIs that don’t close. Industry deal mortality runs roughly 25-35% in lower middle-market M&A — meaning one in three signed deals never reaches close. The mortality rate varies by deal type, buyer type, and seller preparation level. Well-prepared sellers with well-qualified buyers and well-structured LOIs close at 85%+. Poorly-prepared sellers in broad auction processes close at 55-60%. Most of the gap is preventable with pre-LOI cleanup.

How long does it take to recover from a fall-through?

Restarting after a fall-through typically takes 3-6 months, plus any additional diligence cleanup the failed deal exposed. Reopening to backup buyers (if you maintained the relationships) is fastest — 30-90 days to re-engage and sign a new LOI. Restarting from scratch with a new outreach process is 6-9 months. Cost: $50-150K in additional legal and accounting fees. The deal you sign at the second close is often 5-15% lower than the first deal due to staleness in financials and diminished negotiating leverage.

How is CT Acquisitions different from a sell-side broker or M&A advisor?

We’re a buy-side partner, not a sell-side broker. Sell-side brokers represent you and charge you 8-12% of the deal (often $300K-$1M) plus monthly retainers, run a 9-12 month auction process, and require 12-month exclusivity. We work directly with 76+ buyers — search funders, family offices, lower middle-market PE, and strategic consolidators — who pay us when a deal closes. You pay nothing. No retainer, no exclusivity, no contract until a buyer is at the closing table. You can walk after the discovery call with zero hooks. We move faster (60-120 days from intro to close) because we already know who the right buyer is rather than running an auction to find one. And because the buyer pays us only on close, our incentives are aligned with deals that actually close — not just deals that get to LOI.