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What a diligence exercise actually recovers

The retention, the indemnity and the policy are worth 493,000 and are invisible to an entry yield — which is what the committee paper reports.

A buyer under offer at 24,000,000 runs the diligence, finds six things, and negotiates four of them into the deal. The price falls by 690,000, the entry yield goes from 6.00% to 6.18%, and the committee paper reports 18 basis points as the return on the exercise — in the only unit a committee recognises. The number is right. As a measure of what the diligence recovered it is short by 13 basis points.

Three of the four instruments never touch the yield

Look at what came out of the negotiation, rather than at what came off the price.

InstrumentValue to the buyerReaches the entry yield?
Price deduction — roof and lifts, taken on the day690,000yes
Retention — the seller funds the compartmentation175,000no
Indemnity — expected value of the rent review280,000no
Policy premium — paid by the seller38,000no
Total recovered1,183,000
Four instruments came out of the negotiation. One of them is cash off the price on completion day; the other three are contingent, and an entry yield is a spot measure.

Only 58.3% of what was recovered reaches the entry yield. The retention, the indemnity and the policy premium are worth 493,000 between them and are invisible to a spot measure, because a yield divides today’s income by today’s price and three of these four instruments pay later or pay conditionally.

PriceEntry yieldImprovement
Before diligence24,000,0006.00%
After the price deduction only23,310,0006.18%18 bp
Adjusted by the full recovery22,817,0006.31%31 bp
The exercise is reported at 18 basis points. It is worth 31 basis points.

The understatement is 13 basis points on 31 — the reported figure captures a little over half of the result. This is structural, not careless: it is exactly why the right way to present the ask is as a composed schedule of instruments rather than as a single total, and why the yield line belongs underneath that schedule instead of standing in for it.

Which workstream actually produced the findings

A diligence budget is usually approved as one line. Split it against the findings and it becomes ten decisions, each with a return.

WorkstreamFeeValue recoveredReturnFindings
Building and services survey96,000865,0009.01×roof, lifts, compartmentation
Legal title and leases84,000318,0003.79×rent review, mezzanine consent
Environmental desk study9,6000none on this deal
Intrusive ground investigation24,0000not commissioned
Measured survey19,2000none on this deal
Financial and tax structuring60,0000none on this deal
Insurance review and placement14,4000none on this deal
Counterparty and source of funds19,2000none on this deal
Valuation for lender24,0000none on this deal
Contract and disclosure72,0000none on this deal
Total422,4001,183,0002.80×
Ten workstreams, six findings. Attribution turns a budget line into ten separate decisions.

The exercise as a whole returned 2.80 times what it cost. The building survey alone returned 9.0 times — it produced three of the six findings, including both that reached the price.

Eight of the ten workstreams recovered nothing on this deal, and they consumed 57% of the budget. That is not an argument for cutting them, and reading it that way is the standard error: a workstream is bought for the finding it might produce, and it is sized against that finding’s expected value. Which is a calculation, and it is almost never performed.

The one workstream that was dropped, priced

Here is that calculation done once, on the investigation this deal skipped. An intrusive ground investigation costs 24,000. It pays for itself when the probability of contamination times the remediation it would reveal exceeds that — so the break-even probability is the cost divided by the remediation, and nothing else.

If contaminated, remediation ofBreak-even probabilityExpected loss at 2%at 5%Investigation pays at 5%?
250,0009.60%5,00012,500no
500,0004.80%10,00025,000yes
1,000,0002.40%20,00050,000yes
2,000,0001.20%40,000100,000yes
4,000,0000.60%80,000200,000yes
The investigation costs 24,000. Break-even probability is simply that cost divided by the remediation it would reveal.

At a million of remediation the investigation is worth commissioning if you think the chance of contamination exceeds 2.4%. It fails only if you believe both that the probability is at the floor of what anyone means by low and that the remediation would be small: at two per cent it still pays above 1,200,000 of remediation.

The usual reason for skipping it is the timetable — three to five weeks, and the commonest cause of a missed exchange — and that is a defensible reason. It is just never tested against money. And the timetable objection has three answers already on the instrument list: delay the exchange, exchange conditional on the report, or take a retention sized to the remediation range. Accepting the risk is a decision; a reason that is not a number is not a reason.

Two numbers that get set and never sized

The reporting threshold. Items above 50,000 get reported. On this deal that suppresses exactly one finding — the mezzanine consent, worth 38,000, or 3.2% of the whole recovery. Small. But notice what the threshold is applied to: the cost of the remedy. The mezzanine is worth 38,000 only because the instrument chosen was an insurance policy; the consequence of the underlying defect is removal and loss of income. A threshold on the cost of the remedy systematically suppresses the findings whose remedy is cheap and whose exposure is not.

The warranty basket. At one per cent of the price that is 240,000, and three of the five findings would not clear it on their own. They did not have to, because they were taken in cash and escrow instead — 865,000 of the recovery is immune to a basket by construction. That is the whole purpose of the instruction to convert findings into price and retention rather than leaving them in a warranty, and here it is worth the difference between recovering them and not.

And one sentence that is arithmetically wrong

It is often said that spending 80,000 before exclusivity in a four-bidder process “has an expected cost of four times its apparent one”. It does not. The expected cost of making the bid is 80,000: you spend it whether you win or lose, which is what makes it sunk. What is four times apparent is the cost per completed acquisition, 320,000 — a real number, and the right one for a committee, but an acquisition cost rather than an expected cost.

The two answer different questions. Is this bid worth making? compares 80,000 against the value of this bid. Is this strategy worth running? compares 320,000 against the value of a completed deal. And the argument the sentence was reaching for is stronger than the one it made: even at one win in two, pre-exclusivity investigation costs more per closed deal than the entire building survey that produced three of the six findings.

What to change in the committee paper

Report the recovery as a schedule of instruments with the yield line underneath it, not as a yield line alone — on this deal that is the difference between 18 and 31 basis points. Attribute each finding to the workstream that produced it, so the budget is renewed as ten decisions rather than one. And for every workstream not commissioned, write the break-even probability next to the reason: it is one division, and it converts an accepted risk into a stated belief.

The workbook behind this article

Every figure above is a live formula in the companion file for Real Estate Transaction Due Diligence, which reproduces the chapter’s ask line by line, attributes the six findings to the ten workstreams, and prices the investigation the deal skipped. It is free, and it needs no account and no email address.

Open the companion file →

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