Good morning.
As an Oxford-trained linguist, now retired after many years teaching, I required from my pupils the same high standards of accuracy in English expression, spelling and punctuation that I demanded in French and German. I can assure you that years of experience writing formal English, including correspondence, have equipped me with the skills you are seeking. I would be delighted to help you formulate business letters to embassies in the appropriate tone and with sensitivity. I envisage the price I have bid would cover two hours work on a longer letter.
I look forward to hearing from you.
Yours sincerely,
Laurence Impey