Need articles to be written by professional, university grade native writers

I'm looking to hire professional/native writers. This will be a long-term relationship so please do not disappear after delivering a few articles. Prices are based on how proficient your writing is. You must meet the following requirements: ---English must be your first language and you must show that you can use English in a powerful and intuitive way ---Must be able to do thorough research before writing and be able to show a great understanding about the topic assigned. All facts presented must be accurate and not made up. Paraphrasing should be avoided. ---Perfect grammar and proper use of punctuations Give me a short introduction of yourself, where you're from, how much you charge per 100 words and a quick résumé if you're interested. If I like it, I will ask you to write a 100 word article of any topic to assess your researching and writing skills. If I happen to reject the sample article, it will be your property and in no way, shape or form will I use it. Topics that I assign you must be thoroughly researched before the article is written and all facts must be 100% true. I expect the quality of the article to be the same as [login to view URL] or about.com. Obviously, no parts of the article should be plagiarized or simply reworded from another source. There will be a series of checks to ensure this does not happen. Rewording sentences\words from other sources is strictly prohibited. I would like you to write this in a wiki style format, separated by subheadings. The first paragraph should be a very general overview, and then broken into categories such as uses, benefits, side effects, and other headings you see fit. Please do not include information which is too technical. An average joe should be able to read and completely understand the article. Make sure the sentence flows naturally, proofread your article and do not make awkward placements of words in your sentences Looking forward to working with you.