How do you approach due diligence in a competitive auction?
A core M&A Advisory interview question — asked in analyst and associate interviews across IB, PE, and the Big 4.
THE SHORT ANSWER
Speed, focus, and parallelization, without sacrificing the deal-breakers. You have limited time and access against other bidders, so prioritize ruthlessly: front-load the issues that could kill the deal or move value most — customer/revenue quality and concentration, regulatory/antitrust and FDI, environmental, key contracts, and litigation — rather than boiling the ocean. Lean on the vendor due diligence to avoid duplicating work, and run all workstreams (financial, commercial, legal, tax) in parallel, not sequentially, with tight coordination and a single point of accountability. Prepare the SPA markup alongside diligence so you can negotiate terms and findings simultaneously, and convert findings into price chips/protections in real time. Manage the data-room Q&A efficiently and use management presentations well. Crucially, stay disciplined on value — auctions create deal fever, so hold the walk-away, and use confirmatory diligence post-exclusivity to verify the assumptions you bid on. The aim: enough diligence to bid credibly and protect against the big risks, fast enough to win.
WHAT INTERVIEWERS LISTEN FOR
- ✓Prioritize deal-breakers/value-movers; don't boil the ocean
- ✓Use VDD; run workstreams in parallel with one coordinator
- ✓Prepare SPA markup alongside DD; convert findings to chips in real time
- ✓Hold value discipline/walk-away; confirmatory DD post-exclusivity
COMMON MISTAKES
- ✗Sequential, exhaustive DD that's too slow
- ✗Not leveraging VDD or parallelizing
- ✗Deal fever overriding the walk-away
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