Article rewrite

Hi, I need some one to re write the articles I have. They are completely technical article in Business analysis and System analysis etc.. So need some one very good in English to re write the article with out changing the meaning. There are many articles more than 50 articles.. material will be provided completely in word files to you. some word files have even 5000 words in it. But you will be paid for every 500 words.(we will consider each article as 500 words). We would like to pay 1.5$ per each article(500 words) (fixed price). Articles must be copy scape free. Article will not be considered and payed if not properly re written. please send sample articles on finance/business/ etc to see your English quality. Happy bidding.