Reviews your current processes against the ISO standard you need and maps out exactly what has to change before the audit.
Prepares the policies, records, and evidence auditors expect to see, in the format your certifying body requires.
Schedules and liaises directly with the certification body through Stage 1 and Stage 2 audits, and handles any findings.
Reach any of them directly if this person is unavailable — they share the same client files.