Roy Williams founded Prestige Wealth Management Group to provide personalized CFO services including comprehensive financial planning, tax planning, investment management, retirement planning, estate planning, and insurance. The document emphasizes listening to clients to understand their unique goals and situations, then developing a customized and holistic plan. It highlights services like in-house financial planning, tax preparation, and estate planning to ensure all aspects of clients' financial lives are addressed. The goal is helping clients achieve financial security and independence to focus on their priorities.