Right‑size diligence for stage and check size, but cover the core pillars:
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● Team: founder‑market fit, speed of learning, integrity (reference checks).
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● Market: urgent problem, big market (or wedge into one), early signs of demand.

● Product/tech: feasibility, defensibility, roadmap risk; review demos and talk to users if possible.

● Go‑to‑market: who buys; how they buy; early CAC/retention signals (or a credible plan to find them).

● Legal/finance: entity status, cap table hygiene, IP assignment, key contracts, regulatory exposure.

Use checklists to avoid blind spots. Keep in mind: the most common startup failure reasons include no market need, ran out of cash, and team issues—so aim your questions there.