These 47 questions are organized in the order you should ask them: sponsor first, then deal fundamentals, then capital structure, then legal, then financial projections, then communication. Each category builds on the prior one. If you cannot get credible answers in the first two categories, the remaining categories become less relevant.
Check items off as you receive satisfactory answers. A satisfactory answer is specific, verifiable, and consistent with other information you have gathered. Vague or generalized responses do not count.