20 Articals Needed Various Subjects

We need 20 original well written articles written with different key words for various subjects. Each article needs to be at least 500 words with key words placed to a good % of article. Each article needs to be 100% original and not used again after. We will own all rights to the article. Each article will be checked against copyscape. Payment will be made on the completion of the project by escrow and will be paid once we are happy with all articles. Subjects will be around real estate and insurance.