License, Certification, Registration Licensed Marriage and Family Therapist (Washington) OR Mental Health Counselor License (Washington) OR Licensed Advanced Social Worker License (Washington) OR Licensed Independent Clinical Social Worker (Washington). Essential Responsibilities: Provide appropriate social work interventions to all age patients and their families including but not limited to psychosocial assessment, brief individual or family, advocacy, linkage, referral, group work, case coordination, and long-term care planning and placement.