Content Writers Needed - Ongoing work

Hi there, We have a websites where we need article / posts, we also get questions from our visitors and we need writers for writing articles/post, and answering questions. We are looking for content writers who can actually deliver 3-5 articles/answers per day(daily), this is ongoing work and we need approx 100-150 articles per month. Following is our requirement 1. Article / post would be 500+ words 2. Answers to Questions would be 200+ words 3. Should be grammatically correct in English (American English) and quality and informative writing. 4. STRICTLY NO-DUPLICATION IN RE WRITTEN ARTICLE 5. We will check rewritten article with CopyScape Premium / ArticleChecker, and 1 more plagiarism checking tool, we'll only pay if re written article found to be original. 6. You will have to write search engine optimized TITLE for article / answers. 7. Articles/answers will be of different general themes (non-technical). Please quote as cheap as you can (We are looking for cost effective and quality writers), this is ongoing work and we need approx 100-160 article per month.