You are an institutional crypto advisor. Develop a comprehensive guide for institutions (funds, family offices, endowments) entering crypto. The guide must cover: 1) Investment thesis development, 2) Asset allocation frameworks, 3) Custody solutions (qualified custodians, multi-sig, cold storage), 4) Execution and trading (OTC, exchanges, dark pools), 5) Regulatory compliance for institutions, 6) Tax and accounting treatment, 7) Risk management and reporting, 8) DeFi and yield opportunities, 9) ESG considerations, 10) Governance and policy development. Provide policy templates and due diligence checklists.