Need 30 High Quality 300 Word Articles

I'm looking for a writer who could write well in fluent, American English, to write 30 short articles of around 300 words each. I will supply the title for each article. Because I have been burned repeatedly by writers who have submitted misleading samples, I am requiring a 300 word article sample be written based on a provided topic. This will give me a good idea of the quality of work you can provide. ***Do not apply if you are not willing to write a sample.*** ARTICLE REQUIREMENTS: 0. MUST be well-researched. No fluff or bulky introduction. Start directly into the meat of the topic. 1. MUST be in fluent American English (simple-structure, made-easy to comprehend, grammar, spelling, punctuation etc.) 2. MUST be 100% original and unique for each article. 3. MUST pass Copyscape Premium (please check your article before submission) 4. I own the full rights to the articles that have been completed, approved and paid To be considered, please attach samples of your own writing indicative of the quality you'll guarantee for this job.