Hi,
You can find my academic and professional background in my profile.
I've placed the lowest possible bid on your project, because I'm still relatively new on the Freelancer platform (and also because you already mentioned a rate in your project description), and I'm currently mostly looking to generate ratings and reviews. The money at the moment is not that important yet. I usually tend to work for a minimum of about $7.5 per 500 words, but your project sounds like it's worth giving a try.
I'm a Dutch native, so not English, but I've studied in English all my life, both on university and on post-graduate level. The articles I would write would be written in high-quality English, they would be well-researched, and SEO-optimized (if you provide the keywords).
If you have time to check my profile, you can see that I've completed several projects very similar to yours, to the clients' full satisfaction. I don't believe your project would cause me too many problems, and I can provide you with some samples of previous work on articles about a variety of topics, if you want.
Should my profile and bid interest you, then I'm more than interested to hear more about your project, in terms of your specific requirements, such as which keywords you'd like to have mentioned per article, and how many times per article.
Hopefully you're willing to consider my bid,
Take care,