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Cofounder Due Diligence Checklist

Organize consent-based evidence and identify questions that need professional review before a founder commitment.

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Built for founder commitment decisions

Use this template when

Founders evaluating a serious candidate before sharing ownership, confidential information, or company authority.

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The downloaded Word file includes the same sections below, so you can review the structure before saving it.

1. Identity and references

Verifying identity, history, and relevant references establishes a factual baseline without treating familiarity as evidence.

  • Identity and work history verified: [Method]
  • Relevant references with consent: [Names]
  • Past founder or leadership context: [Evidence]
  • Material discrepancies to discuss: [Items]

2. Contribution evidence

Work samples and observed delivery provide stronger commitment evidence than titles, confidence, or future promises.

  • Relevant work products reviewed: [Items]
  • Skills demonstrated directly: [Evidence]
  • Time commitment tested: [Evidence]
  • Claims still requiring verification: [Claims]

3. Financial constraints

Discussing constraints helps the team plan runway and commitment without demanding unnecessary private financial detail.

  • Earliest full-time date: [Date]
  • Minimum compensation boundary: [Range or condition]
  • Outside work or obligations: [Constraints]
  • Runway scenario requiring a change: [Scenario]

4. IP and conflicts

Existing IP, employment duties, and competing interests can limit what a founder may safely contribute to the startup.

  • Pre-existing IP identified: [Assets]
  • Employment or contract restrictions: [Items for counsel]
  • Current competitive interests: [Interests]
  • Confidential information boundaries: [Rules]

5. Working trial

A real trial reveals communication, execution, judgment, and repair patterns that interviews cannot establish.

  • Trial outcome and duration: [Plan]
  • Ownership and dependency tested: [Work]
  • Stress or disagreement observed: [Evidence]
  • Debrief findings: [Summary]

6. Red-flag decision

An explicit decision rule prevents momentum or sunk cost from minimizing evidence that deserves a pause or stop.

  • Verified concern: [Evidence]
  • Information still missing: [Item]
  • Mitigation or next test: [Action]
  • Proceed, pause, or stop decision: [Decision and reason]

Disclaimer

This checklist is a decision aid and not legal, tax, financial, employment, or investigative advice. Use consent-based methods and qualified professionals where appropriate.

Download, adapt, then validate the partnership

A template helps you structure the conversation. CofounderFit helps you test whether the partnership can survive the conversation before equity, vesting, and commitment are final.

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Create your founder profileSurface the founder dynamics that should shape this document.Compare with a specific cofounderInvite the person you are considering before formalizing terms.Prepare founder questionsSurface expectations before making a founder commitment.

Cofounder Due Diligence Checklist FAQ

When should cofounder due diligence begin?

Begin once mutual interest is serious and before exchanging sensitive assets, changing employment, granting authority, or negotiating final equity.

Who should participate in cofounder due diligence?

The candidate and current founders should participate transparently, with references, counsel, or other advisors involved only with appropriate consent and scope.

What is the biggest due diligence risk?

Informal or intrusive checking can create privacy, fairness, and trust problems, while unverified assumptions can create false confidence.

Legal disclaimer

This template is for informational purposes only and does not constitute legal, tax, financial, or professional advice. Laws and enforceability vary by jurisdiction. Have any final agreement reviewed by a qualified professional before signing.