Hi,
I have read your description and I would definitely be able to complete your work to a high standard.
My name is Karl Sears and I am a native English speaker who was born in Oxford. I have a degree in English Language and Literature and I am also a qualified copywriter. I teach English as a foreign Language, so you can be assured that my knowledge and application of grammar is exceptional. As a result of this work I have also become aware, and know how to look out for, common mistakes that non-native speakers can make. I have experience proof-reading CVs, so I think that I am the ideal man for the job.