Create a detailed consulting checklist for onboarding new clients. Include [CLIENT INDUSTRY], [SCOPE OF WORK], and [TIMELINE] as key customizable sections. The checklist should cover initial discovery, goal alignment, resource allocation, risk assessment, and milestone tracking. Ensure it is adaptable for [SMALL BUSINESSES], [ENTERPRISES], or [NONPROFITS]. Provide clear action steps, stakeholder roles, and success metrics. Format it as a step-by-step guide with placeholders for client-specific details.