12 Unique and Informative Articles

I'm looking for someone to write 12 articles based around 12 keywords (1 article per keyword). Each article will be 500 words long and I require the keyword to be in the title of the article, and repeated 6-7 times throughout the article. These articles are to offer highly relevant and informative content to the target audience - this is very important. English spelling and grammer must be superb An impresive job on this will result in plenty more work. Bid fast because I don't hang around Thanks