What should happen in the first 30 days after an acquisition closes?

The first 30 days are about control, trust, and information quality before larger value creation projects begin. For sponsors, operating partners, board members, and portfolio company management teams, the practical answer is to treat the question as part of post-close handoff, KPI ownership, board cadence, cash control, value creation initiatives, management accountability, and exit preparation, not as a one-off definition. The record should show the value creation plan, board materials, KPI dashboard, budget, variance commentary, initiative tracker, lender reports, and risk log so an investor, lender, counsel, administrator, or operating lead can reconstruct the decision later. Use a day-one to day-30 checklist covering bank access, payroll, reporting, lender requirements, customer continuity, employee communication, and urgent risks. The common failure mode is jumping into strategic initiatives before the sponsor knows whether basic reporting, cash controls, and management handoffs are stable.