Google Analytics Cleanup: Inbound Links Troubles

I need assistance with my Google Analytics. It appears that spam or irrelevant inbound links are affecting my site's ranking. I suspect several of my sites may be experiencing this issue.

Ideal Skills:
- Google Analytics expertise
- SEO knowledge
- Ability to identify and filter spam links
- Experience with multiple site management
Potential Tasks:
- Analyze inbound links across my sites
- Identify spam or irrelevant links
- Provide solutions or recommendations for cleanup