I need a Wikipedia article editor

I am looking to edit the Wikipedia article of a friend with a significant amount of negative opinion written to slander them. Basically the job would be to remove anything that is negative opinion/cited to opinion articles and insert some factual (with proof/citations) information by someone who knows wikipedias guidelines and has a history of factual editing so it doesn't just look like a puff piece. Let me know if you can help and what details you might need. Thanks