Buy side M&A advisory fails in a specific and avoidable way: the mandate becomes indefinite. There is no auction to force a decision and no market to set a timetable, so unless the parties create milestones the engagement drifts into a monthly retainer with no visible progress and an eventual argument. Four things agreed before signing prevent almost all of it. This page sets out the four.
One: the target list, agreed rather than presented
Built with the client rather than delivered to them, with the rationale for each name and an explicit note of who was excluded and why. A list the client did not help build is a list they will second-guess at the first refusal, and the second-guessing is where the relationship goes.
Two: what an approach actually is
Who makes it, in whose name, saying what. Owners who are not selling react badly to approaches that feel like a broker's letter, and an adviser approaching in their own name gets a different reception from one approaching on behalf of a named acquirer. Decide it once rather than per target.
Three: a monthly account, not a monthly meeting
Who was approached, what came back, and what changed in the list. Written, brief, and the same shape every month, so a run of nothing is visible as a run of nothing rather than as a series of optimistic conversations. That visibility is what allows a mandate to be ended honestly.
Four: a review point with a real decision at it
Six months, say, at which the parties either re-scope the list or stop. Without it the default is indefinite continuation, and on this site's worked example a $12,500 monthly retainer is $112,500 over nine months, which is a lot to spend on a default nobody chose.
Questions people ask about buy side m&a advisory
Why do buy side mandates drift?
There is no process forcing a decision, so unless the parties set milestones the default is indefinite continuation.
Who should build the target list?
The adviser with the client, including the names excluded and why. A list the client did not help build gets second-guessed at the first refusal.
What should the review point decide?
Re-scope or stop. On the worked example, a $12,500 monthly retainer is $112,500 over nine months of a default nobody chose.