You can't simply import the form and convert it into a fileMaker record, but you can create a PDF of the form and insert it as a background image to use as a guide for replicating that design in FileMaker. FileMaker was pretty much built around the "electronic form" paradigm originally and thus you have quiet a few tools you can use to create such a form--though what you do with it after you have created is where you'll need to spend some time in planning and design work.
Once I create it, I will be providing it to people to complete and return where another group of people add review comments in the boxes that I spoke about.
This is a key detail to research and plan your design around. Can each of these people access a hosted FileMaker database in order to review the information and to add their data? Will each of them have a copy of FileMaker installed to make it easier to access this database or would you use Instant Web Publishing to enable them to access the data with a web browser or might it be possible to create a run time copy of the database that would be sent from reviewer to reviewer...
All different approaches with different strengths and weaknesses.
It's also possible to download a 30 day free trial of FileMaker. Doing so would give you a good idea on what FileMaker is like.