Longterm Article Writer Needed

Hello, I am looking to hire a long term writer who can write keywords rich seo articles. The average price per 500 words is $5.00. I have several articles that I need completed. I am looking for writers that can create high quality, informative articles. I also only want Native English speaking writers - if you do not have a good grasp on the English language do not bother. Also, if you are going to have excuses or not respond to my e-mails when the deadline is nearing, don't bid. To be considered, please bid for 10 articles at $5 a piece with sample articles.