UK based - CGT timing and BADR

Seeking an experienced UK tax adviser to provide guidance on capital gains tax timing and Business Asset Disposal Relief for a structured share sale. Require clear analysis of CGT crystallisation points, optimal disposal timing, BADR eligibility criteria, ownership and trading tests, potential anti-avoidance issues, and documentation best practice to support relief claims. Deliver concise actionable recommendations and illustrative scenarios tailored to a UK-based seller.