Legal Assistance Office, Region Legal Service office Naval District Washington (RLSO NDW) is located at 1250 10th Street, SE, Washington Navy Yard, Suite 1600 Bldg. 200, Washington, DC 20374. Legal Assistance Office, Region Legal Service office Naval District Washington (RLSO NDW) can be reached by their main phone number at (202) 685-5580. Alternatively, you can reach Legal Assistance Office, Region Legal Service office Naval District Washington (RLSO NDW) by phone at (202) 685-5580. The listed DSN line is 312-288-5569.