Shannon's practice since law school graduation has been devoted entirely to family law. Shannon became a Principal of Rich Rosenthal Brincefield Manitta Dzubin & Kroeger, PLLC in 2008 and continued there until forming the Family First Law Group in 2020. Shannon regularly leads continuing legal education classes in domestic relations and is an active member of the Fairfax and Alexandria Bar Associations. She is a volunteer conciliator in the Fairfax County Circuit and Juvenile and Domestic Relations District Courts. Shannon grew up in Fairfax County, and she is a graduate of James Madison High School in Vienna. She returned to Northern Virginia after graduating from the University of Richmond School of Law. Shannon resides in Vienna with her husband and two children.