He should be expert and i am offering $10 for this job. Surf all pages and find any grammatical error. Before paying you i will verify everything from other expert. You will need to prove that you are native english speaker Thanks.
Do you really want someone who is residing in an English-speaking country or do you actually want someone who can get your work done?
If you 'other expert' is working for free, why not get them to do this for you and save your pennies?