This is not an observation about process. It is a mechanical fact about what happens to deal dynamics once exclusivity is signed.

Before the LOI, findings create leverage. Every gap you identify is an input to pricing, structure, and terms. You can adjust the number. You can require remediation as a condition. You can demand escrow. You can walk away without having mobilized a team or committed capital. The cost of knowing is the finding itself, which you now get to price while the other side still needs your yes.

After the LOI, everything is different. Capital is committed. The team is mobilized. Your IC has heard the thesis and approved the direction. Diligence providers are on the clock. The founder knows you are engaged. Sunk costs are real, and they apply pressure in only one direction: toward closing.

Pre-LOI
Findings create leverage. Price is negotiable. Terms are open. Walking away costs you time, not capital. Every posture gap is an opportunity to reprice or restructure before anyone is committed.
Post-LOI
Findings create friction. Price is anchored. Sunk costs generate momentum. The question stops being “what is this worth?” and becomes “is this bad enough to kill the deal?” Those are entirely different questions evaluated in entirely different conditions.

In that environment, findings do not create leverage. They create friction. A material finding post-LOI is not an opportunity to reprice. It is an obstacle to manage, evaluated against a thesis that has already been told to the IC, a team that has already been assembled, and a timeline that has already been communicated to LPs.

This is why most bad deals do not fail in diligence. They pass. The diligence team is working with real information, but evaluating it against a question that has been subtly reframed. The thesis is already set. The IC already believes. The job of diligence is no longer price discovery. It is confirmation, with carve-outs for the catastrophic.

Pre-LOI work is not a compressed version of the same thing. It is a different instrument entirely. It runs while you still have a negotiating position, before sunk costs generate their own logic, before the momentum of a deal makes it harder to stop than to close.

The findings that matter most are the ones that surface while you can still do something with them.

If you discover in month three what was knowable before the LOI, you did not miss it. You chose not to look when looking still mattered.

The cost of not knowing pre-LOI is not the cost of the pre-LOI work. It is the delta between what you paid and what the business was actually worth.