Greetings to you sir/ma,
I am a native English speaker who grew up exclusively in Liverpool and California, thus a good command of both British and American English, in tandem with a Master's of Arts degree from Stanford. I have over eight years of professional writing experience writing for academic institutions and working at various media houses on freelance basis.
Having read through your project proposal, I believe I can deliver your project needs, I would also offer quality work a discount so as to keep you coming back. You can be rest assured you wouldn't be disappointed, but rather pleased.
Looking forward to hearing from you and working worth you. I might have a sample for you.