Business Acquisition Due Diligence Checklist (from real failed deals)

Thesis 0/7

Assign a full-time on-site operator with authority, cadence, and backfill before closing. Remote or part-time oversight lets sales, staffing, cash, and systems problems compound unnoticed.

Skipped in 7 deals

Set add-on gates requiring stable retention, cash flow, payroll, systems, and reporting before another acquisition. Rolling up before the last deal stabilizes can compound integration failures and overwhelm management capacity.

Skipped in 4 deals

Model exit-fit and resale affordability for likely buyers before making offers. Without an exit-fit test, buyers can acquire cash-flow businesses that cannot reach the desired resale market.

Skipped in 1 deal

You Bought Small Businesses. Now You Can't Exit

Set a minimum target size; document overhead, owner time, and debt-service feasibility before waiving it. Too-small deals can consume management effort while lacking earnings to cover debt, staff, and buyer overhead.

Skipped in 1 deal

We Bought a Business for $1.1M and Nearly Broke

Write a buy box covering industry economics, recurrence, sales model, required capabilities, and non-transferable playbooks. Assuming your prior playbook transfers can hide unfamiliar sales cycles, labor constraints, and margin structures.

Skipped in 3 deals

Write a personal downside plan covering maximum loss, unpledged assets, family runway, and employment fallback. If the deal fails, the buyer can lose personal assets and income before a recovery plan exists. Map competing acquirers, labor costs, supplier costs, and supportable add-on prices before committing to roll-up thesis. Ignoring the buyer landscape can make add-ons unavailable or available only at value-destroying prices.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Sourcing 0/4

Ask why strategic buyers passed and document the answers. Assuming you found a hidden gem can mask structural problems experienced buyers already rejected.

Skipped in 1 deal

How This Entrepreneur Failed At A Turnaround Acquisition And What He Learned Through The Experience

Maintain weekly on-market and proprietary outreach pipelines so scarcity does not drive weak deals. A thin pipeline makes marginal deals feel irreplaceable and encourages waived standards.

Skipped in 1 deal

The 7 Year Collapse of an SBA Acquisition | Scott Duncan Interview

Screen sellers for litigation, tax liens, IRS issues, references, and commingled personal expenses. Dishonest or distressed sellers can hide liabilities, distort earnings, and waste diligence spend.

Skipped in 1 deal

From Rookie Deal to $17M in Revenue

Benchmark three similar companies for gross margin, lead sources, job mix, and repeat frequency before LOI. Without comparables, weak margins, poor leads, or low repeat revenue can look normal.

LOI 0/7

Approve only assignable, affordable leases with confirmed fees, guarantees, deposits, and release terms. Unresolved or unaffordable leases can create blocked assignments, surprise guarantees, disputes, or years of preventable losses.

Skipped in 3 deals

Confirm required license holders and price compliant alternatives before granting equity or valuing continuity. Depending on one license holder can force bad economics, governance concessions, or operational shutdowns.

Skipped in 3 deals

Require independent signoff on buy-box fit, valuation, risks, anomalies, and proceed rationale. A fatigued or emotionally invested buyer can rationalize criteria violations and keep chasing a weak deal. Define AR, inventory, backlog, WIP, working-capital target, and closing true-up formula in the LOI. Undefined calculations create late price disputes, surprise funding needs, and arguments over who earned project profits.

Skipped in 1 deal

I Bought a $7M Roofing Business… Then Almost Lost It

Write LOI access rights for native files, bank statements, tax returns, contracts, payroll, and walk-away rights. Missing access rights can block verification of earnings, deposits, contracts, or talent before exclusivity expires.

Skipped in 2 deals

Set a minimum diligence period and refuse urgency, illness, or broker pressure to waive checklist items. Emotional deadlines can push buyers to accept unverified claims and close before discovering fatal issues.

Skipped in 1 deal

From Rookie Deal to $17M in Revenue

Build payer-by-payer reimbursement, claim-volume, denial, and compliance models before pricing healthcare revenue. Reported revenue can collapse if payer economics, denials, or compliance limits differ from seller summaries.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Due diligence 0/28

Map seller-dependent leadership roles to skills, replacements, backups, and operator capacity before valuing earnings. If the seller cannot stay or must be removed, revenue and compliance can lose their sustaining role.

Skipped in 7 deals

Verify the sales engine using CRM data, lead sources, cohorts, referral calls, and closed-won evidence. Unproven sales channels make future growth depend on hope instead of a repeatable process.

Skipped in 4 deals

Rebuild monthly earnings and run-rate from financials, bank records, add-backs, working capital, backlog, and one-time jobs. Trailing annual earnings can hide current losses, revenue decline, cash burn, or nonrecurring large jobs.

Skipped in 6 deals

Trace sample jobs from source record through billing, collection, bank-cleared payment, payroll, and vendor payment. Revenue and cash timing can look real in summaries while failing source-document and bank verification.

Skipped in 3 deals

Build transaction-level gross margins by service line, customer type, salesperson, job size, and seller-originated work. Average margins can hide services, customers, salespeople, or job types that actually lose money.

Skipped in 4 deals

Inspect inventory aging by SKU and require plans for stale stock. Slow-moving inventory can trap cash and require write-downs after closing.

Skipped in 2 deals

Stress-test profit after losing each seller, salesperson, referral source, or ultimate decision-maker. Hidden relationship concentration can break revenue and debt-service assumptions when key people or accounts leave.

Skipped in 5 deals

Benchmark customer pricing and review overbilling exposure before valuing contract revenue. Mispriced or overbilled contracts can trigger renegotiations, refunds, audits, lawsuits, or lower margins.

Skipped in 1 deal

How This Entrepreneur Failed At A Turnaround Acquisition And What He Learned Through The Experience

Vet retained sellers and clinical leaders for background, litigation, licenses, sanctions, malpractice, credit, and stress references. A compromised retained leader can import fraud, regulatory, reputation, or governance risk after closing.

Skipped in 2 deals

Test workflows and leader buy-in before changes; define roles, decision rights, and blocker replacements. Inherited leaders who oppose the plan can stall reporting, system adoption, and operational control.

Skipped in 6 deals

Review any owner’s existing business for debts, open jobs, separation controls, and wind-down deadlines. Outside businesses can import liabilities, consume shared resources, and keep owners competing with the acquired company.

Skipped in 1 deal

Plumbing Acquisition Gone Wrong | Josh Key Interview

Review active jobs for percent-complete, billings, deposits, actual costs, cost-to-complete, and remaining margin. Unfinished work can contain overstated revenue, unearned deposits, or inherited losses hidden by summary reports.

Skipped in 5 deals

Interview key staff, benchmark pay, test replacement capacity, and agree retention bonuses before final valuation. Critical employees may leave, demand raises, or be harder to replace than the model assumes.

Skipped in 7 deals

Annualize current employee and contractor costs from rosters, pay rates, start dates, and payment history. Ignoring run-rate labor costs makes reported annual profit look higher than the business can sustain. Have an industry expert review key employee credentials, licenses, and deliverables against the customer promise. The business may be selling expertise that staff cannot consistently deliver after closing.

Skipped in 1 deal

When a $2.8m Acquisition Is More Like Zero to One | Dave Gilbert Interview

Ask written seller questions on every material cost, revenue, or headcount timing anomaly. Unexplained timing changes can hide recurring expenses, disappearing revenue, or unsupported add-backs. Maintain a shared issue tracker and valuation bridge; raise supported price changes as findings arise. Late or unsupported retrades destroy trust and can collapse an otherwise salvageable transaction. Review insurance requirements, claims history, classifications, injury logs, certificates, and buyer-name coverage quotes. Hidden claims or coverage gaps can leave the buyer underinsured, over budget, or exposed to inherited liabilities.

Skipped in 2 deals

Call customers, suppliers, former employees, and competitors to test seller reputation and trust concerns. Hidden distrust can damage collections, supplier credit, customer retention, and employee cooperation after closing.

Skipped in 1 deal

Lessons from 24 Acquisition Nightmares | Jed Morris Interview

Secret-shop customer interactions and review feedback to diagnose service, staff, management, or product problems. Without direct customer evidence, buyers can misdiagnose marketing problems as operational failures, or vice versa.

Skipped in 1 deal

I Lost $100K Trying to Save a Failing Franchise

Separate recurring repair revenue from project, capex, or surge work; stress-test sharply lower bookings. Temporary project demand can make earnings look durable and support debt the business cannot carry.

Skipped in 1 deal

The 7 Year Collapse of an SBA Acquisition | Scott Duncan Interview

Verify trust-accounting rules and reconciliations before closing; implement monthly owner-balance reviews by handoff. Mishandled client funds can create disputes, regulatory problems, cash shortfalls, and unusable financial statements.

Skipped in 1 deal

We Bought a Business for $1.1M and Nearly Broke

Treat unresolved seller-integrity concerns as go/no-go issues through a written risk memo. Deal structure may reduce losses but cannot make a fraudulent counterparty safe to buy from.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Map manual handoffs and price system fixes, extra labor, error risk, and working-capital cushion. Broken processes can require unexpected spending, staff time, and cash before operations stabilize. Hire field-specific billing auditors to test charts, claims, remittances, deposits, and audit history. General accounting diligence can miss noncompliant billing that creates repayment, sanction, or shutdown risk.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Require diligence providers to document exceptions, independent evidence, and findings cleared only by seller explanation. Seller explanations can falsely clear issues when advisors do not verify them independently.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Have counsel confirm payer, licensing, Medicaid, and attorney-general investigations or restrictions in writing. Hidden investigations or payer restrictions can erase revenue and create regulatory exposure immediately after closing.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Interview frontline staff about audits, denials, unusual billing, operational concerns, and what to investigate. Employees often know compliance and operating problems that sellers will not volunteer.

Skipped in 1 deal

How to Recover from a Fraudulent Seller | Jason Jackson Interview

Financing 0/5

Verify capital commitments and sources-and-uses, including closing costs, working capital, transition payroll, and backups. Vague or incomplete funding plans can leave the buyer unfunded after exclusivity or unable to operate after closing.

Skipped in 2 deals

Stress-test weekly cash flow and debt service under verified earnings, churn, payroll timing, and collection shocks. Summary profitability and base-case debt models can hide cash gaps that prevent paying crews, vendors, or lenders.

Skipped in 6 deals

Choose investor aggregation or minimum checks before confirming cap-table, accreditation, wire, and lender-documentation requirements. A messy investor base can delay lender approval, funding logistics, and closing wires.

Skipped in 1 deal

Raise $800k to Buy an $8m Business | Kevin Bibelhausen Interview

Choose a lender with workout contacts and predefine counsel-led deferment or sale proposals for distress. Origination-only lenders and unclear contacts can delay workouts or distressed sale approvals when cash is tight.

Skipped in 1 deal

The 7 Year Collapse of an SBA Acquisition | Scott Duncan Interview

Review guarantee default scenarios, exposed personal assets, and protected liquidity with spouse, counsel, and lender. Buyers may not understand which family assets are at risk until default or bankruptcy is unavoidable.

Closing 0/10

Retain independent licensed deal counsel for each buyer-side principal before signing governance documents. Conflicted or unlicensed counsel can leave you with unenforceable documents and no advocate for your interests.

Skipped in 1 deal

Plumbing Acquisition Gone Wrong | Josh Key Interview

Put deadlock, buy-sell, removal, non-solicit, capital-call, default, and exit rights in governance documents. Without these rights, partner deadlock or misconduct can trap the company with no practical remedy.

Skipped in 1 deal

Plumbing Acquisition Gone Wrong | Josh Key Interview

Require approved bank, card, accounting, purchasing, and job-cost accounts with role-based access and dual approvals. Uncontrolled spending and coding let owners divert cash, hide costs, or commingle outside obligations.

Skipped in 2 deals

Prepare a closing transition package covering cash, payroll, insurance, suppliers, customers, systems, access, and handover materials. Missing owners, dates, dependencies, or handover materials can cause preventable payroll, supplier, customer, and compliance failures.

Skipped in 9 deals

Adopt a workplace violence policy banning weapons, threats, and intimidation before partners or sellers work onsite. Ignoring threats can endanger employees and prevent quick removal of unsafe people.

Skipped in 1 deal

Plumbing Acquisition Gone Wrong | Josh Key Interview

Secure escrows, holdbacks, true-ups, and indemnities for unfinished work, unearned revenue, taxes, and undisclosed expenses. If the seller is fully paid, the buyer may have no practical recovery for misstatements or inherited obligations.

Skipped in 3 deals

Make seller consideration contingent on enforceable customer handoffs, backlog transfer, and non-solicitation. The seller can be fully paid before customers, revenue pipeline, or transition duties actually transfer.

Skipped in 4 deals

Use an asset purchase or new entity unless counsel confirms all acquired-entity liabilities. Buying the old entity can transfer hidden debts, claims, taxes, contracts, and employee liabilities.

Skipped in 1 deal

I Lost $100K Trying to Save a Failing Franchise

Decide rehired employees, employment terms, pay rates, and transition communications before closing. Unplanned employee transfers can cause wage disputes, compliance problems, resignations, and employment confusion.

Skipped in 1 deal

I Lost $100K Trying to Save a Failing Franchise

Route material deal changes through counsel, broker, or a written issues list after LOI. Side-channel pressure or requests to bypass advisors create mistrust, mistakes, and deal collapse.

Integration 0/2

Avoid customer-facing changes until cash flow, staffing, service, and bottlenecks are stable. Abrupt changes can disrupt customers and employees before the buyer understands operational constraints.

Skipped in 6 deals

Move lead channels into monitored company systems, audit CRM weekly, and revoke departing users immediately. Uncontrolled lead flow lets employees divert opportunities before management detects the loss.

Skipped in 1 deal

How 1 SBA Loan Brought Down 2 Businesses | Edgar Galindo Interview

Operations 0/7

Set stop-loss triggers for cash burn, management time, margin misses, and strategic fit before funding losses. Without predefined stop rules, owners keep injecting cash and attention after the recovery case has failed.

Skipped in 7 deals

Send owners monthly debt-payment confirmations and alert lenders immediately about covenant or payment issues. Silent missed payments or covenant breaches can escalate before owners or lenders can intervene.

Skipped in 1 deal

Plumbing Acquisition Gone Wrong | Josh Key Interview

Prepare counsel-approved notices, evidence, and dispute strategy before terminating any seller-manager. An unplanned termination can escalate into litigation and undermine purchase-agreement remedies.

Skipped in 1 deal

How 1 SBA Loan Brought Down 2 Businesses | Edgar Galindo Interview

Run weekly operating reviews tracking sales, backlog, gross margin, cash, turnover, loan payments, and integration risks. Without a regular dashboard, deterioration in sales, labor, cash, or debt service can surface too late.

Skipped in 6 deals

Maintain manager scorecards covering performance, values, retention, coaching, decision dates, and interim backups. High-output toxic managers can drive away good hires and damage the turnaround before leaders act.

Skipped in 2 deals

Run monthly slow-moving inventory reports and reset reorder rules to actual unit sales. Old buying habits can keep converting scarce cash into inventory customers are not purchasing.

Skipped in 1 deal

I Lost $300K On This Business… Do I Close It?

Compare no-move versus move downside cases before relocating; secure signed backlog, deposits, and funding. A move can add fixed costs and disruption before demand exists to absorb them.

Skipped in 1 deal

The 7 Year Collapse of an SBA Acquisition | Scott Duncan Interview

Exit 0/1

Get broker, CPA, and counsel exit analysis before rejecting offers or funding further losses. Unrealistic sale-proceeds assumptions or rejected offers can turn a manageable outcome into a larger loss.

Skipped in 2 deals

The buyer's checklist.

Thesis 0/7

Sourcing 0/4

LOI 0/7

Due diligence 0/28

Financing 0/5

Closing 0/10

Integration 0/2

Operations 0/7

Exit 0/1