Article writing project for Long Term

I am looking for good article writers. Must have a passion for writing. Excellent research skills. Have a good command of the English language (grammar, punctuation, spelling). 1. The articles should be unique and should pass the copyscape. No copy paste stuff (zero tolerance) 2. Article must be readable (no spinning software) 3. Grammar and Syntax error free (you'll have to keep editing unless I approve them) 4. Meet deadline. I have several subjects I want written about. I set up niche websites. So, the topics change all the time. Because of that, I am looking for writers that can be flexible and write about various different subjects. I have some that I want to use for my websites and others I want to use for backlinking. Usually I required the articles to be written with 500 words. Please bid for 10 articles. While bidding use the keyword "Understand Requiremets", so that I can know you have read the complete bid. I am looking for writers to do this for me on an ongoing basis. So, this job would be running continuously. If you have any questions for me, please let me know. Please do send a work sample or a portfolio if you have one ready. The samples can be about any topic. If you have it ready, you can send one. If you are comfortable with either way, then no need to say anything. I want to match the right job with the right worker so you can do your best work.