Article writer | Quality needed

Hi. I am looking for an article writer who can provide me: 1) Unique articles on my topics. 2) Copyscape passed articles. 3) Grammatical error free. There are no other requirements from me for my articles, every article will be 400-500 words. I will say you to write a sample article of 250-300 words for me on my given topic before I hire you. I have alot work for you if you can meet my all criterias. Right now I need 15 articles once you will done with it then we will discuss about more work. i am looking for the right person. Happy bidding