High quality writer needed

I need a skilled writer. He must have to be very skilled in English and provide me100% grammatical correct articles. Every articles must have to be original and unique, No copy paste will be tolerated. I will check them with copyscape. If they don't pass copyscape and their remain grammatical error then you will not get payment. I need 15 articles this time. Every articles will be minimum of 500-550 words. I have a large number of work. If you do the good job then i will hire you for long term work. My budget is 30$