Email potential donors for nonprofit

I'm interested in someone who can write a compelling email for my small nonprofit in hopes of partnering with a much larger organization. I'm a global humanitarian currently working in Ethiopia with plans of expanding to other parts of the world. I think we should discuss my expectations before I download the information needed. I've had 2 attempts, but as a marketing expert, I realize that the email needs to be more relatable to the individual and much more inspiring. I have loads of great content, yet I'm not a writer. I need of someone who can take my experiences and story and bring it to life for the reader.