Here are some resources for dealing with tenant issues, including mold. These government agencies and private organizations may be able to provide legal assistance or professional censure:
Within the city limits: Asheville Building Safety Department, 259-5846
In the county but outside of Asheville: Buncombe County Fire Marshal's Office, 250-6620
Pisgah Legal Services, 253-0406
Asheville Board of Realtors, 255-8505