Scrivener is much better than Word for large documents. You can export a Scrivener-flavored file from Markdown to LaTeX without a problem. For that matter, you

Scrivener is much better than Word for large documents. You can export a Scrivener-flavored file from Markdown to LaTeX without a problem. For that matter, you can also export to Word and directly to pdf. There's an import feature in Scrivener to bring in Word files, I'm not sure how it deals with changes made by others with respect to the original exported file. Scrivener is a terrific first draft program. And for the guy who asked, it does an excellent job of exporting to epub.