Determine Why a Site is Ranking so high / how to get above them

A person has added content to a blog/forum that is derogatory about my client and that page continues to rank very high regardless what we have done. What a SEO expert to look at the site and tell us why this site continues to rank so highly - even though it is getting older now. Also what we can do to get sites over it in the ranking to get off front page of search engines. Due to sensative nature of the information - we can only give site and name details to winner. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Employer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the employer on the site per the worker's Worker Legal Agreement). 2) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 3) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Employer's environment--Deliverables must be installed by the Worker in ready-to-run condition in the Employer's environment. b) For all others including desktop software or software the employer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this project. ## Platform review web site