Can wife ask for parental property while filing for divorce ?

I married 1yr back, have a 2 months old baby now. My parents are alive & My wife and her parents are demanding my parental property to be written to my and my wife's name. My family history in short - My parents were divorced when I was schooling. I was brought up by my father, who later remarried and now has a young kid in school with my step mom. I also have a brother of my biological mother (whom we are not in touch with). I believe my father has a written will, which he has not disclosed, that will be implemented after he passes away? My wife's parents are saying that they had agreed to the marriage based on property to be written to myself and/or both my wife and my name. (This was never told by my parents. I personally was told about this just last month by my wife and her family) But, now looking at their actions and behaviours I am scared that my wife, I go for divorce and ask for property. Please advise on where I and my parents stand on this kind of legal situation.