Hello,
I am a native English speaker and an aspiring novelist with an MA in English Literature. I have vast experience in writing and editing articles, so you can be confident that my spelling, grammar and punctuation are perfect. I tend to be very critical of my writing and language use, so I can assure you of extremely high quality work written according to your specifications. I pride myself of my originality and creativity, and I feel I am the right person to do this job. I would really appreciate this opportunity and I am sure you will not regret having chosen me.
I will send you a PM with a sample.