Specialized financial needs in cannabis with Simon Dufour, CPA for Hall & Company. For over 35 years, Hall & Company has embraced entrepreneurs, CEOs, and founders for their visionary and independent spirits, and they specialize in serving their accounting, tax, and specialized financial needs. Hall & Company provides a vast array of advisory services, including tax, accounting, and specialized support for businesses and court cases. No matter how intricate a business challenge may be, their team becomes an entrepreneur’s most trusted resource.