The post-close transition determines whether your acquisition succeeds. Here's the playbook:
Week 1: Day One Communication - Meet every employee individually — explain the transition and your vision - Contact top 10 customers personally — reassure them nothing changes - Meet key vendors and suppliers - Review all upcoming deadlines, payments, and commitments - Shadow the seller and learn the daily rhythm
Days 1–30: Learn the Business - Shadow the seller on every aspect of operations - Document all processes, passwords, and tribal knowledge - Understand the financials at the line-item level - Map all customer relationships and risk - Review all contracts, leases, and agreements - Identify the 3–5 things only the seller knows how to do - Set up your own banking, accounting, and management systems
Days 30–60: Stabilize - Begin handling customer relationships independently - Take over financial management and reporting - Identify any "surprises" not caught in due diligence - Build relationships with employees — understand their concerns - Establish your weekly management cadence (team meetings, KPI reviews) - Address any urgent operational issues
Days 60–100: Optimize - Implement quick wins (pricing adjustments, cost reductions, marketing) - Start building systems and SOPs where none exist - Evaluate team — identify A-players, train B-players, plan for C-players - Set 90-day and annual goals - Begin marketing and growth initiatives
The golden rules of post-acquisition: 1. Don't change anything for 90 days unless urgent. Understand before you improve. 2. Over-communicate with employees. They're scared. Reassure them. 3. Keep the seller accessible. Even after formal transition, you'll have questions. 4. Focus on cash flow first. Growth can wait; cash management can't. 5. Document everything. The seller carries tribal knowledge that will walk out the door. 6. Don't fire anyone immediately unless they're clearly toxic. Stability matters.
Common post-acquisition mistakes: - Making sweeping changes in week one (kills morale) - Ignoring employee concerns and culture - Underestimating working capital needs - Over-investing in growth before stabilizing operations - Neglecting the seller relationship too early - Not tracking KPIs from day one