Dear Mr. Robinson,
First, as your inquiry does not provide all of the relevant facts and circumstances to be able to provide you with a complete answer and because it would be important to review all possible relevant documents (including for example your grandmother's will, the deed to the property etc.), please consult with an experienced estate and/or real estate attorney who can better advise you.
The answer to your inquiry would depend on many factors. First, in whose name was the property titled? Was it titled jointly with right of survivorship in the name of your aunt and grandmother? If that is the case, and because agreements with respect to land and real estate generally need to be in writing, who ever held title to the property with your grandmother, would then own the property. There would be little one could do unless there is some written memorandum or agreement to give your father the house.
If your grandmother owned the property and held title with no one else, then the title to the property would be controlled by the provisions of your grandmother's will. Perhaps the Will even provided for your father to have what is called a life estate in the property - namely that he could continue to live in the family house for the remainder of his life. If there was no will and there was no one else who held title to the property with your grandmother, than title would pass based on the laws of intestacy (which is when someone dies without leaving a will.)
If the property either by way of survivorship or the will is now to be held solely in your aunt's name, without reviewing the documents and speaking with you further, it is difficult to discuss what, if any, options there may be. Unfortunately, without proper provisions, these situations often arise. An attorney may, after meeting with you and reviewing the Will and Deed, be able to help you in perhaps negotiating a family settlement in some manner which would be acceptable to all parties.
I am sorry I cannot provide you with any specific information for the reasons stated above. I hope that this at least has provided you with some preliminary guidance. Again, I recommend that you speak to an attorney who can better advise you after an understanding of the relevant facts.
Marla D. Sones
Answered on Feb 29th, 2012 at 1:02 PM