If you were not a named beneficiary in your grandparents will, you do not have a right to the property distributed under the will. However, if there is a trust with remainder beneficiary designation, you may have rights depending on the terms of the trust. Once your grandparents property is 'gifted' to your father in their will, it is legally your father's property to do with as he pleases.
Answered on Oct 01st, 2012 at 6:37 PM