Since the Word document you're importing has probably been
edited by multiple authors with varying degrees of sophistication,
the lists have likely been styled to delirium. Converting them to
HTML would be a chore for any tool.
The least painful way I would suggest is to:
1. In Word, remove all list formatting.
2. Import the Word doc into RH.
3. In RH, select appropriate groups of paragraphs and click
the List toolbar button (Numbered or Bulleted).
4. If you need a sublist, select those paragraphs and click
the Increase Indent toolbar button.
Good luck,
Leon