Hello. I hope you are doing well.
I understand you need a letter written within eight hours, for which I am available. I've been writing at a professional level for over five years, and thanks to the high expectations of my past employer, I'm strong in editing my own work and can dedicate the time needed to complete your letter.
I'l be available to work on it this afternoon and would love to discuss with you via Skype. Please contact me if you would like, I'd be happy to start immediately.
Sincere thanks and I look foreword to your response.
All the best,
Cassi