Dear Potential Employer,
Although I'm new to freelancer, I am experienced in article and essay writing and believe this makes me a great candidate for this job. I'm experienced in working to tight deadlines and am very reliable. I will be able to deliver at least one article per day without fail, and am very interested in developing a long term relationship.
My level of written communication is very high and I believe fully in the importance of spelling and grammar, a quality I believe will be useful for this project.
If you're looking for a reliable writer with a high level of skill, I look forward to working with you.
Thanks for your time!