My father died and I am his only child. He died when I was 2yrs old I'm 23 now. He left me a house and some land in Puerto Rico. My uncle (his brother) asked my mom for all my personal information (birth cert, SS ID #) she thought it was to put everything in my name. now he is nowhere to be found and I have nothing. Could he have illegally signed everything over to his name? Can I sue him for what is rightfully mine 20 years later?