The 90-day operational readiness checklist

Why 90 days, and what buyers actually look at

The Exit Planning Institute frames serious value-acceleration as a 3–7 year programme [4], but the last 90 days before going to market are disproportionately important for a specific reason: that's the window a buyer's quality-of-earnings provider and counsel will read most forensically. Their published diligence checklists routinely run to 50+ items across financial, legal, commercial, operational, IT and HR categories[2], and the most damaging gaps almost always show up in the operational and reporting items rather than the financial ones [1].

The 90-day window is also a useful proxy for the post-LOI period itself. Buy-side advisors typically work to a 60–90 day target from signed LOI to closing [3]; everything you fail to fix before then has to be defended live, under time pressure, while the deal is in motion.

Days 1–30: Surface the discount stack

The first month is diagnostic. You're identifying every operational fact a sophisticated buyer would flag, before they flag it.

• Audit the monthly management-reporting cadence and identify any reports that are owner-built rather than system-generated[1].
• List every recurring process that lives only in the founder's head — pricing logic, escalation handling, supplier negotiation, hiring approval.
• Map top-customer relationships: who owns them today, who could credibly own them post-close, and where the founder is the only contact point.
• Inventory current systems and integrations: what's automated, what's manual, and where data flows depend on a single person running a job each week.
• Pull a 12-month register of customer concentration, churn, margin by service line and any one-off revenue items — these are the quality-of-earnings adjustments buyers will reach for first [2].

Days 31–60: Install the highest-ROI fixes

The middle month is execution. The goal is to retire the largest two or three discount risks the diagnosis surfaced — not to fix everything.

• Move the top two owner-built reports into a dashboard the team owns and updates without founder involvement.
• Document the three highest-frequency operational workflows as SOPs, with AI-assisted execution where it materially compresses the work.
• Rotate the founder out of the top five recurring meetings — permanently. The handover itself is evidence; the absence of the founder from the org chart of operating decisions is what a buyer will verify.
• Reassign named owners for the top 10 customer accounts and put a written transition plan behind each one.

Days 61–90: Build the evidence story

The final month is packaging. The operational improvements only count if the buyer can verify them quickly.

• Stand up the buyer-facing operational dashboard so a quality-of- earnings provider can see live KPIs, not narrated ones.
• Write the operational narrative the management team can defend in a management presentation — without the founder in the room.
• Pre-empt the most predictable diligence questions with written, evidenced answers in a structured data room. The published buy-side checklists are a useful reverse-engineering tool here[2].
• Run a 90-minute internal mock-diligence session: senior team answers the buyer's likely questions while the founder takes notes, not the other way round.

90 days is short, but it is enough to take a meaningful chunk out of the discount stack — provided the work is operator-led, not advisor-led, and the evidence is in the system rather than in the deck.