I find it prejudiced and inconsiderate of you to come on an international platform, with writers coming from all parts of the world to work, and posting a project for those from the US and Canada only. It will be more suitable for you to go to local site. For example, Craigslist.
I'm assuming you've had a bad experience with a writer coming from another country. But here's a fact, the top 10 writers in the world are neither American, nor Canadian. And here's another; choose any American or Canadian writer here. I am pretty sure I will be able to write an article that will be better than theirs in terms of SEO, readability as well as grammar.
Thank you