Article Writers Needed - No Teams Please

I need a Writer or Team of Writers to do articles of various lengths 500-1000 Words. Freelancers who bid MUST be able to do following: 1. Writer Articles in Perfect English. 2. Give Each Article a Unique and Catching Title. 3. Intelligently Use the Given Keyword with Required Density. 4. Write Unique Articles that pass Copyscape. 5. Deliver at least 2500 Words or More within 24 Hours. 6. Available to do any edits in articles. 7. Be available on Skype or G-Talk or at least on Freelancer Chat. 8. Efficient in reply to emails. I will Not pay for any articles that do not pass copyscape or are written in so Poor English that cannot even be edited. Rate per 500 Words is $2. I might hire more than one Freelancers.