Content writers needed urgently

I urgently need quality content writers for articles written on keywords that will be provided. The articles must be unique and pass copyscape and they must be at least 400 words each. A keyword phrase will be supplied for each article The articles must be written by someone with excellent English. Do not bid if you cannot adhere to deadline as you will be dropped if you miss a deadline or turn in inferior work. All work that is assigned must be returned in 24 hours, then you can request more. Articles are generally assigned in sets of 5-10 and may increase according to the performance. Since this is a long term project, the work will be ongoing and you can work as much or as little as you want as long as the work is available and you continue to meet deadlines and pass copyscape. The applicants need to submit one article of our choice in order to win this bid. The budget is fixed and I am looking to pay around $1 per article and may increase further as per the project. For clarification purposes, state your price per article when making your bid. You agree to relinquish all rights to the articles you submit. You also agree not to use the articles for any other purpose and not to distrubute them as samples of your work. The Payment will be done through PayPal after successful approval of the articles and it will be done weekly.