Article writers, Content writers needed for long-term

I need good content writers having strong English language skills. Some of the articles have to be rewritten as instructed with correct grammar and punctuation, if you have a flair for writing this should be pretty easy. I can offer $0.5 to $0.8 per every article of about 250-400 words that is written. All bidders have to submit a small sample of their writing on the topic of my choice. This is an ongoing job and the pay will be increased as per the quality that you produce. Must be able to meet deadlines strictly. *IMPORTANT*- All articles that you submit must be 100% unique and must pass copyscape. If you can't work as advised please don't attempt this job. Bid for this project only if you agree to the conditions and price stated above. New freelancers are also welcome to bid.