Marshall has been the recipient of many awards since his 1992 election to public office. Awards ranging from “Friends of the Taxpayer” for consistently voting “No” to raise taxes, to “Potomac News Best of Prince William” award “in recognition of being voted one of the best public servants in Prince William County.” From the “Piedmond Environmental Council” for his outstanding Initiatives in Smart Growth, to the “Family Foundation Legislator of the Yard” award “in appreciation for outstanding leadership and unwavering commitment to virtue, honor, and timeless principles, serving as a friend and champion of Virginia families.”