Copywriting Content Creation

I'm looking for a highly professional copywriter for ongoing content for creation for a site for pre and post launch that is focused on providing information and finding fact vs fiction for an emerging industry in Canada. Candidates should be Canadian or understand Canada and its politics/culture very well. Writing should be compelling, witty and professional. A good reference are sites like [login to view URL] and Huffington Post. Also focused on conversations with our members to discuss the article further and maintain client relations as the posts will be open to members comments. Further details to be discussed upon the signing of an NDA but would like to see writing samples and know rates if the work is ongoing ie minimum 1 blog post a week. Social Media/Networking skills an asset and should understand how SEO works within content development.