Need SEO website content writer - US English(repost)

Must be US English (Non US English grammar, wording etc.. will not be accepted.) Need a good internet researcher and SEO content writer to research about the subject of "translation" and generate 6 articles (400-450 words). Title and the exact subject will be provided. Deliverables containing grammatical errors will not be accepted, if the mistakes are judged to be excessive, we will decline your deliverable. Must be North American native speaker, writing must follow American writing style and spelling. The contents are written for sales purposes therefore must be decent quality. At the same time, you must understand Keyword density.