Co-editor/author of an Spanish/English book

I need the help of a talented bilingual editor/co-author for a book I’m working on. Nonfiction works in the field of medicine will be edited and co-written for this initiative. I’ll provide her or him with raw material in the form of ideas, thoughts, and fragments, and they’ll turn it into well-detailed and well-organized files. It will be published in all three languages and will be between 50 and 150 pages long.