Article Writer Needed

I am looking for experienced writers to write a series of articles on a variety of different topics. I am willing to pay $1.5/500-word article. Writers must be able to create all-original articles that are of high quality, and must not have been made through the use of any article generating/article spinning software programs. Articles will be checked through Copyscape prior payment is sent to make sure that there is no plagiarism involved. Payments will be done on a weekly basis via Paypal only. Upon submission, all of the copyrights of the submitted materials will be transferred to me and as such, the chosen writer cannot use this as part of his/her portfolio or used as samples for other bids. This is a long-term project and the chosen writer can expect an increase in the payment for articles and bonuses. If you are interested, please submit at least 2 samples of your previous works and how many articles can you submit on a daily basis.