Hello dear employer,
Certainly you require perfect proofreading and editing, so I'm ready to do this task. Your article will be completely free from any errors whether they are related to grammar, verbose, vague phrases, unnecessary use of the passive forms, redundancies, use of the phrasal verbs, punctuation, consistency of the paragraphs, or any other errors.
Be sure you will get the highest level of quality of editing and proofreading.
Concerning my qualifications, I'm highly qualified in English besides getting certificates of performance during my study in England on a basis of an educational mission there in 1997.
I look forward to chatting with you to share more details and start editing and proofreading at once.
With best regards