50 Articles - BMR: 150+ words each

I'm looking for an English writer who can write 50 unique articles, each being at least 150 words in length. Each article will need a keyword included within the first 2 sentences - you'll be able to decide on the article titles. The articles are for buildmyrank.com. They don't accept spun content or articles with poor English or grammar so please don't bid unless you're very fluent in English and can write coherent articles. Any articles which aren't accepted by Build My Rank will need to be rewritten. The budget is $30. When bidding if you can submit an example of previous articles you've written that would be great.