If you need any other help, visit:
Here is a great one:
Eric M. Borgia, Esq.
Florida Bar Board Certified Real Estate Attorney
11930 Fairway Lakes Drive, Suite 2
Fort Myers, FL 33913
Keller Williams Realty
First, try to find him.
Best of luck in your endeavors!
You are going to need to get a Title Company involved to clear the title. They will explain the process and help you take the necessary steps. Your mom, if she's still with us can sign some documents to explain the past history of the ownership. It may take a little time, but the sooner you start the better off you'll be.
If there is no mortgage on the house, you don't need to add one, and you'll need to go through the Title Clearing process if you do. So start there.