Article writing

I need 50 keyword optimized articles. All articles will be about translation and Interpretation services from different perspectives. I will pay $2.00 per article. - Content should be informative and definitely original. - Each article will be 350+ words. - You should not use the same paragraphs or same facts in multiple articles. - The writer must have the ability to write and speak fluently in English - You should check for any grammar or spelling errors - All rights, copyrights will belong to the buyer after the payment. The end work can not be used in any manner. - You must be reachable by email promptly. - Articles need to be delivered on time. - I need the articles in 30 days after the service provider is selected. - I do not want rewrites of existing articles! You would also be getting more new work after this project. So think of it as a long term project. Please, send me your sample articles. Better if you can write about translation service related issues. Thank you