What to write
Three paragraphs save both sides a week of correspondence. This is enough:
- What is happening. Not "we need marketing", but what broke or stalled.
- Which decision is due and the date it is needed by.
- What data exists — statements, account access, reports, code. And what does not.
If the task is not ours, the first reply says so and names who to take it to. That is faster than a meeting that reaches the same conclusion.
What it costs
The diagnostic fee is fixed and quoted before the work starts, once we have seen the scope in your description. It does not depend on the outcome — not on a funder's decision, not on whether you continue.
No percentage
Not of a grant awarded, not of tax saved. That structure creates a reason to advise something other than what you need.