Buy-side due diligence, done properly.

Buy-side diligence runs across parallel workstreams, each looking at the target through a different lens, and the value is as much in how they connect as in what each finds on its own.

Financial diligence examines the quality of earnings, the working capital cycle, the debt and debt-like items, and whether the reported numbers reflect the underlying business or accounting presentation. Legal diligence works through title, contracts, litigation, employment and regulatory standing, testing whether the buyer will own what they think they are buying and on what terms. Commercial diligence looks outward at the market, the customers, the competitive position and the durability of the thing that makes the business worth acquiring.

Diligence produces a great deal of information, and information that is not organised is not usable in a negotiation. The discipline that makes the work count is a single findings register: every issue identified, with its significance, its likelihood, its potential effect on value, and the recommended response, whether that is a price adjustment, a warranty, an indemnity, a condition precedent, or walking away.

The register is what turns diligence from a pile of reports into a set of decisions. It is the document the buyer takes into the negotiation and the one that, later, records why each protection was sought. A findings register that is complete and honest, including the issues that did not change the decision, is the mark of a process that tested the deal rather than sold it.

There is also a discipline in recording the issues that did not matter. A register that lists only the problems reads as an argument for a discount; one that also records what was tested and found sound reads as what it is, an honest account of the business. That completeness matters later, because the register becomes part of the file that explains why the buyer paid what they paid and sought the protections they sought. A diligence process whose own record cannot be defended has undermined the very decision it was meant to support.

Findings do not sit in a report, they flow into the two levers a buyer controls: the price and the contract. A quality-of-earnings adjustment that shows the sustainable earnings base is lower than presented feeds directly into the multiple applied and the price offered. A legal finding that a key contract can be terminated on a change of control becomes a condition precedent requiring consent, or a warranty, or a price reduction reflecting the risk.

This is why diligence and negotiation are not sequential but interleaved. Each material finding is a fork: reprice, protect, or accept. A buyer who has done the work knows, for each issue, which fork they will take and what they will trade for it. A buyer who has not is negotiating blind, and the counterparty will know.

Diligence has a cost and a clock, and both discipline the work. The art is to scope the effort to the decision rather than to exhaust every avenue: go deep where the value is concentrated and the risk is real, go lighter where it is not, and know the difference. A programme that runs every workstream to the same depth regardless of what the business is usually reflects a failure to think about what the acquisition actually turns on.

Handled this way, buy-side diligence is not a hurdle before completion. It is the mechanism by which a buyer converts a thesis into a defensible decision, and by which they enter the negotiation knowing more about the target than the seller expects them to. That knowledge is the whole point, and it is worth doing properly.