Virtual assistant for approving off-page SEO links, emails, marketing

I need help with my websites for
- responding to customer emails,
- approving backlinks,
- marketing
- article writing or proof reading.
Should have basic understanding of SEO, backlinks, Guest Article Posting, Social Media marketing, Affiliate marketing, ---------- itially part-time, but if you do well, will hire fulltime. Thanks for your time and wish you all the best.