Article rewriter required

We are looking for a inexpensive content writer, who can do a little amount of research and write articles on health,parenting,baby and pregnancy subjects. We initially need 20 original articles of 200 to 300 words each. We have a list a keyword or phrase for each article and it is to replace an existing page on our website. If the work is good quality, we will have another 30-60 articles to be done plus on-going work. We need the articles delivered within 1 week of the award of the project, so specify how many articles you would be able to deliver in 1 week. The raw material for the articles can be derived from any source but must be completely original and NOT VIOLATE ANY COPYRIGHT LAWS. i.e. you can reference articles that are already written but you must then rewrite them completely. We will have sole rights to these articles. Articles should be delivered as plain-text files without formatting. Payment will be made within 3 days after the articles are delivered and are found consistent with this project description. Payment will be made by pay pal or credit card. Keywords will be provided upon awarding the project. DO NOT provide a generic bid. Provide a specific bid as to what you will do in what time.