Quality writer needed...preferring Native English speakers

Hello everybody, Basically, I am hunting for a content writer who can handle 50 articles. The niche will be discussed once chosen. The writer must have perfect flawless English, articles must pass plagiarism test and hence no copy paste work. Moreover it will be better if you are available via any IM. I will give preference to Native English speakers though non-native are also welcome to bid. You will be selected based on your quality of work. Right now, I am paying $1.5-$2 per 500 word article. This may seem low, but I will be increasing the pay gradually. If you think that you will be able to produce decent articles, then get back to me ASAP along with your sample works. Looking forward for your bids.