Article researching and Rewriting

Hello and thanks for bidding, I am looking for high quality writers to re-write 20 articles with a look to more regular work I will not be providing the original articles, and the research must be done by you. I will however give you guidelines on the type of articles and Keywords I am looking for. I will need a minimum of 20 articles submitted in the first project. Depending on the quality of work I may ask for 50 articles a week in the very near future. All articles must be written by a NATIVE ENGLISH SPEAKING writer. The rewriting will need to be concise and to the point. I can't accept articles just filled with fluff words meant to fill space. I pay $1.50 (US) per 400-600 word article ($1 for the rewrite, and 50c for the research) The keywords I provide you need to be used in a normal and conversational way throughout the articles please.  The keyword/keyword phrase needs to be in the article title, first sentence and used another 10-12 times throughout the article for a total keyword density of 2-2.5%. I will send you a free piece of software called DupeFreePRO in case you aren't familiar with it. This software allows you to quickly and easily check your keyword density. The articles need to be informative to the reader with 100% correct grammar and punctuation. Also, the articles must be at least 85% unique, they will be reviewed through Copyscape and Plagiarism Detect 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. I will not be able to pay if all requirements in this listing aren't met, so please don't bid if you can't meet these requirements. You agree that upon sending me the rewrites all rights to the rewritten articles transfer to me. This means you will not sell, reproduce or re-use these articles in any way. Please be able to communicate 1-2 times per day via email or AIM messenger. Bids will only be considered with a sample article on a topic that I choose. Please type this in your private message to me. "freelance rewriters" so I know you read and understand the requirements. Thank you and I look forward to hearing from you