National Association of Realtors
430 N. Michigan Ave.
Chicago, IL 60611-4087
Phone 1-800-874-6500
http://www.realtor.org
Northern Virginia Association of Realtors
8411 Arlington Blvd.
Fairfax, VA 22031
Phone 703-207-3200 Fax 703-560-8239
http://www.nvar.com
Society of Industrial & Office Realtors
700 11th St., NW Suite 510
Washington, DC 20001
Phone 202-737-1150 Fax 202-737-8796
http://www.sior.com
State Insurance Departments