Needed article writers for health niche

I am looking for an accomplished writer for various niches, predominantly health. The articles should be CS passed. No software generated articles will be accepted. I want a good, native English writer who can write articles with good command over the language. You should include subtitles, bullets and pointers in your articles. Please send in your samples and if you have done any content for websites please do mention them. Let me know why I should hire you. Also specify your location and whether you work as team or an individual. My rates are 2.5$ for 500+ words, 3.5 for 800 words and $4.5 for 1000 words for UNIQUE CONTENT. The articles should be of high quality and someone who is adept with health topics, with SEO basics in mind may apply. The person(s) chosen may be required work for other niches also in future. One more factor that is very important for me is how fast you can send me the articles. This is very important for me. Payment will be done through PayPal. There is a strong possibility of ongoing work for someone who can write well. Regards, Arun