Butterfly - Go to your local Title company. For a small fee they will help you do this. Now you may also be able to do this at the Clerks office, but unless you know the history of the deed and what might have been done while your mother was living is why I suggest the Title company. They can do a guick title search to make sure everything is okay.
Also, if you are in or went through probate, this is normally something that is done for you.