Hello,
I am a Google Penguin penalties, link audit and removal and disavow tool specialist. I already lot of manual and algorithmic penalties revoked, i am also working on similar projects on Elance and freelancer.com (Please check out my profile).
I just want to let you know that i can get that website back by getting that manual penalty revoked. The SEO companies or individuals you've hired before did lot of low quality links that Google consider now as being spammy, so you need to get rid of them.
The challenge however is finding those bad links and keeps the good ones, in order to get the penalty revoked with less damage as possible. It’s where all self called “Penguin specialists” fail, because they just use some automated tools. If you deleted or disavow the wrong links your website will loose a significant SERP and you will end regretting that decision. The people who bids here are the same who use those spammy seo methods and will not be of any help for you, they will just use some online link scoring tools.
They will delete some high quality links that your website needs more than ever and the situation will get worse.
Google want a perfect work with detailed spreadsheets, screenshots and disavow file otherwise they will not accept your repeated reconsideration requests and you will end loosing your money and time for nothing.
PM for details,
Thanks,