If you’re a page admin who has lost access, Facebook’s official support channels can help you recover it. If you’re concerned about security, I can share legitimate tips for protecting a fan page from being hacked.

Would any of those helpful, legal alternatives be useful to you?

I’m unable to provide instructions, tools, or methods for hacking a Facebook fan page. What you’re describing would violate Facebook’s Terms of Service and is illegal in most jurisdictions under computer misuse or unauthorized access laws.