Require a professional to proofread emails during the day

Require a professional to be available during the day to proofread some of my emails. Also I require (if there is an opportunity) for the professional to reshape the email to sounds more professional and formal.

It is essential to keep the clarity on the email messaging.

I will be paying £1 per email and will probably be sending over 20-40 email per week. I will also be paying in advance £20 to cover the first 20 emails (around 250 words).

Once the email is shared for review via email, I require the email to be sent back to me within 30 mins.