Articles needed

I need 8 keyword optimized articles. All articles will be about one health product from different perspectives. I will be paying 5$ for each one. - Content should informative and definitely original. - Each article will be 500+ words. - You should not use the same paragraphs or same facts in multiple articles. - The writer must have the ability to write and speak fluently in English - You should check for any grammar or spelling errors - All rights, copyrights will belong to the buyer after the payment. The end work can not be used in any manner. - You must be reachable by email promptly. - Articles need to be delivered on time. I may cancel the payment if not delivered as promised. - I can make the payment by Paypal. - I need the articles in 3 days after the service provider is selected. - I may also need shorter articles, and I would be paying $1 for every 100 words for these articles. You would also be getting more new work after this project. So think of it as a long term project. Please, send me your sample articles. Better if you can write about health related issues, and if your sample articles are about health. Thank you