Article Writes/Rewrites For Sports and Fitness Site

I am looking for writers to write/rewrite articles on a on-off basis. I will need a minimum of 40 articles submitted for my approval PER Request in a zip file [login to view URL] (notepad) format. Hopefully, I can engage you as a regular writer without putting up for another bid. I pay via Paypal within 48 hours of completion of each 40 article project, All articles must be written by a NATIVE ENGLISH SPEAKING writer. Please don't bid if you aren't able to meet these requirements. I pay $20 to start for 40, 500 - 600 word articles and will increase it with proven reliability and writing skills. I will supply you with all the [login to view URL] keywords I provide you need to be used in a normal and conversational way throughout the articles. The keyword needs to be in the article title, first sentence and used another 10-12 times throughout each article. The articles must be at least 85% unique, they will be reviewed through Copyscape and Dupecop for plagiarism. If an article you submit to me does not pass Copyscape or has spelling and punctuation mistakes, you will not be paid for that article until it is corrected and resubmitted to me for approval. You must know sports, nutrition, exercise and fitness regimes. The articles need to be informative to the reader with 100% correct grammar and punctuation. They ABSOLUTELY MUST read like they are written by a Native English speaker...this is very important. You agree that all written articles are transferred to me. This means you will not sell, reproduce or re-use these articles in any manner. Please be able to communicate 1-2 times per day via email, Bids will only be considered with a sample article on a topic that I choose. When bidding please bid on the first project of 40 articles at $20. Please type this in your PMB to me.. "quality writer" so I know you read and understand the requirements. Thank you and I look forward to hearing from you