Dear Sir or Madam,
I would like to inform you that I am interested in this job. Despite the fact that I am not a native speaker of English, I am confident about my writing skill and I am planning to write all the articles you will order and then have it checked by a native American speaker. We agreed earlier on this point with my native partner(we will share the earning). Also I have a lot of free time when I can be online and available for new articles.
If you hesitate to hire me considering my mother tongue is not English, you can think it as an advantage to pay less than you would pay for a native speaker. I am looking forward to hearing from you
Regards,
Şeyma Özdemir