We require an expert to review the status of our website and find (and resolve) the issues that are causing our website to violate the Google Webmaster's Guidelines.
The message from Google that we receive is below.
We welcome any serious bidders.
Dear Site Owner or Webmaster of -domain-,
We've received a request from a site owner to reconsider -domain- for compliance with Google's Webmaster Guidelines.
We've reviewed your site and we still see links to your site that violate our quality guidelines.
Specifically, look for possibly artificial or unnatural links pointing to your site that could be intended to manipulate PageRank. Examples of unnatural linking could include buying links to pass PageRank or participating in link schemes.
We encourage you to make changes to comply with our quality guidelines. Once you've made these changes, please submit your site for reconsideration in Google's search results.
If you find unnatural links to your site that you are unable to control or remove, please provide the details in your reconsideration request.
If you have additional questions about how to resolve this issue, please see our Webmaster Help Forum for support.
Google Search Quality Team