Marvin has shared his wisdom across multiple platforms as a speaker, coach and trainer. He has been featured in several publications, including Town & Style magazine, and contributed to prestigious financial publications such as Kiplinger. Marvin was listed among the 20 People to Know in St. Louis by Gazelle magazine and named the ThinkAdvisor's 2016 Retirement Advisor of the Year. He also has been recognized for investments in his community, receiving the 2016 Legacy Award for commitment to community involvement from the St. Louis County chapter of the NAACP.