First, I hope you are populating new documents based on the templates, not simply the templates. The word "template" in Word jargon carries a lot of baggage.
Templates in Microsoft Word
Yes, but the UserForm needs full paths to the templates, bookmarks in the templates, etc. You can simplify things by using the same bookmarks in the templates.
You are probably going to want to base your paths on the path for thisdocument. That would make your work more portable.