Article writing project

I am looking for some serious freelance writers that are capable of writing on a variety of topics! The articles are 500+ words each and generally require keyword density of 3 to 5%. **Only those fluent in American English and grammar need to apply. I need qualified writers that are capable of producing top quality content. ** I will be selecting multiple writers as the jobs will be a minimum of 10 articles per project. Budget is limited at $2.00/500 words and $1.00/Rewrites! The articles must be original and checked for quality. Plagiarism is NOT acceptable, of either online or offline works. I will confirm originality through several programs such as Copyscape, Plagisoft and others. I expect you to run the articles through online copy checking websites &/or software prior to submission. Please provide me with samples of previous work when applying. If this works out well and I am happy with the finished work, I intend on using your services for an indefinite amount of time. I am looking for writers who can begin taking on assignments immediately. All articles will be considered "work made for hire" under U.S. Copyright law. I will own exclusive and complete copyrights to all completed article content once delivered and paid. You may not distribute the articles in any way after delivery to me. Once I pay for the Articles I will own ALL publishing rights. Please PM bid and sample of your work. See attached "Work For Hire Agreement" Please note: Work for Hire articles that have been written for me cannot be used in any way, not even as examples to share with others.