Article Writing Talent Needed

I need an experience writer to write 50 articles, each at 500 - 600 words, at various topic. I am looking to assign this project to someone who have the capabilities. Straight to the points, following is my requirements - 1. Fixed budget $40. You must deliver 50 articles within 5 days WITHOUT any grammatical errors, I'll get someone proofreading. 2. Article MUST BE well researched and nice to read. 3. All articles have to be unique, CopyScape premium passed. No plagiarism, spun or translated articles. 4. Copyrights belong to me, you claim no rights of ownership to the article, nor can it be distributed. 5. Provide references / sample of your work. No reference = ignore. 6. Again, each article has to be at least 500 words. 7. New freelancer.com writer / Zero feedback writer are encourage to bid. Remember, reference is needed. Please note that this is ongoing project, therefore you'll have chances to get new order frequently if you passed probation. Happy biding.