Malvin, Riggins and Company, P.C. One Research Court Rockville, MD 20850 www.malvinriggins.com 202-499-0069 Malvin, Riggins and Company, P.C. brings together many years of professional accounting, tax and business advisory services. Malvin, Riggins and Company, P.C. is small enough to provide individual attention, but large enough to give the highest level of tax and accounting expertise.