What does the montgomery county commerce department do? The Montgomery County Commerce Department utilizes a unified approach to providing economic & workforce development services and assistance to inpiduals, entrepreneurs, investors, businesses, communities, and institutions.Who is the director of economic development for montgomery county? A graduate of Emory University with a Bachelor’s in Environmental Studies, he went on to receive a Master of Public Policy degree at the University of Maryland, College Park. Lynne is MCEDC’s Director of Economic Development, charged with helping businesses locate, grow and expand in the county.What is the phone number for montgomery county md? 311 or (240) 777-0311 (also known as MC311), is Montgomery County, MD’s phone number for non-emergency government information and services. For emergency calls, residents should continue to call 911.How do i contact montgomery countys department of housing and community affairs? If you'd like to contact the Department of Housing and Community Affairs (DHCA) by mail or telephone, please use the information below: 311 or (240) 777-0311 (also known as MC311), is Montgomery County, MD’s phone number for non-emergency government information and services. For emergency calls, residents should continue to call 911.