Article Writer required - Long term project

We need multiple number of good writers to write about our company service. Here is my condition: 1. You must have excellent writing skills in English. 2. Article must be top quality. 3. Article should be the free of spelling mistakes and grammatical errors. 4. Article must pass Copyscape. Our initial price is US$2 per article and each article should 500 words. Later, we'll increase the price and based on the performance. Payment via Freelancer i.e. Milestone payment and also submit your sample while applying this project. It's long term project and please bid only serious bidders. Happy bidding!!!