Buying a Fire and Life-Safety Business: A Diligence Worked Example

Fire and life-safety inspection is a business model buyers love: contracted, recurring inspection and maintenance work, sticky customers, code-mandated demand. It screens beautifully. This is a worked example on one such target, where the financials held up and the real risks sat somewhere a spreadsheet never looks.

Finding 1: the concentration claim that does not hold

The narrative said no single customer was more than 15% of revenue. The customer schedule, a few pages deeper, put one at 21%. A six-point gap is not fatal on its own, and a sticky, contracted, decade-long account at 21% can be a fine risk. What matters is that the two numbers were never reconciled, which tells you how carefully the rest of the book was assembled. Concentration is a question to ask, not automatically a reason to walk. But you can only ask it if you noticed the gap.

Finding 2: the CIM revenue does not tie to the tax return

The CIM showed $8.4M of revenue. The tax return showed $8.1M. A $300K gap, and no note explaining why. There is often a legitimate reason: different periods, cash versus accrual, a reclassification. But "there is probably a reason" is not diligence. The reason has to be found and written down, because the alternative is that the number you are underwriting is the optimistic one.

Finding 3: the founder holds the license

This is the one that a purely financial read misses. The founder personally held the operating license the business runs on, and planned to retire in about eighteen months. On paper you are buying a business. In practice you might be buying a shell whose right to operate walks out the door with the seller, unless successor licensing is solved before close. That belongs in the letter of intent, not the surprise pile after it.

The pattern

Two of these came from holding the narrative against the schedules. The third came from reading for operational and legal risk, not just financial. Financial diligence tells you what the business earned. Operational and legal diligence tell you whether it can keep earning it after the deal. You can explore this exact worked example, with every figure traced to its source page, in the sandbox.

Frequently asked questions

What is licensing successor risk? It is the risk that a business depends on a license, certification, or permit held by the owner personally, so the company's right to operate is not automatically transferred when you buy it. In licensed trades it is a first-order question: confirm the business, not just the seller, can keep operating after close.

Why reconcile the CIM against the tax return? The two are produced for different reasons: the CIM to sell, the tax return to file. When they disagree, one is closer to what the business actually earned. Lining them up early is one of the highest-yield checks you can run. See how to analyze a CIM.

Is recurring inspection revenue as safe as it looks? Often yes, but confirm recurring means contracted, not habitual. Read the actual agreements, check renewal terms and churn, and see whether the demand is code-mandated or discretionary.

See the cited, cite-or-cut diligence approach at Deal OS.