Shannon worked for an international accounting firm for 10 years as the Manager of the Employee Benefit Plan Audit Group. In 2003, she and her partner Rachel Pinckard formed Black & Pinckard LLC (B&P), a public accounting firm that specializes in audits of employee benefit plans. B&P is one of very few niche firms of its type in the nation and also the only completely-woman-owned audit firm in the state of Alabama. They audit benefit plans exclusively and service clients across the nation with plan assets ranging from $1 million to $500 million and plan participants ranging from 100 to in excess of ten thousand. The Firm currently audits 80 – 85 benefit plans each year.