NAI Koella | RM Moore are professionally trained commercial real estate advisors and property managers with international reach and local expertise. NAI Koella | RM Moore has provided support to East Tennessee since 1983. Commercial Real Estate, around the corner, around the world. NAI Koella | RM Moore has earned Women’s Business Enterprise (WBENC) certifications as a woman-owned business and a woman-owned small business, and is also a member of the TriState Minority Supplier Development Council and State of Tennessee Diversity Business Enterprise.