Is there a tool for WPML that will allow us to export the pages from the English (main) site so that we can hand them off to a translator? And once they update that document, import the translations to the correct language pages?
I've found export/import support information on your site, but those mostly seem applicable to moving/migrating an existing site.
You can export the translation jobs in XLIFF files, send them to be translated offline and upload them back to your site.
Then WPML will match the translated XLIFF file with the original one and create the translation.
This can be achieved with the following steps:
1. Go to WPML > Translation Management
2. Select the content you want to translate
3. Send for translation
4. Go to WPML > Translations
5. Select the page/post
6. Click "Export"
7. Translate the file then upload it again in WPML > Translations using the "Import" button