You have not provided enough information to know what the circumstances are. Is your name the only one on the deed? If so, it would seem you are the owner and no other person can pass title to it whether by deed or by will.
If you own only a partial interest in the house, the owner of another partial interest in the house can certainly pass his/her interest to another person by will.
I think you should confer with a good real estate attorney in your area. It would be worth a modest conference fee to learn your status.
Answered on Apr 17th, 2012 at 7:00 PM