Legal heir

MY FATHER EXPIRED TWO YEARS BACK.I WAS NOT LIVING WITH MY FATHER FOR THE LAST 15 YEARS, SO I DID NOT HAVE ANY INFORMATION REGARDING WHAT HE DID .OR WHAT ACTUALLY DID HE HAVE. I KNOW HE HAD A FLAT , SOME FDRS IN THE BANK AND SOME MUTUAL FUNDS I DID NOT KNOW WHAT ELSE HE HAD. AFTER HIS DEATH I WHEN I INQUIRED FROM MY RELATIVES I WAS TOLD THAT MY FATHER DIDNOT LEAVE A WILL AND THE FLAT IS IN THE NAME OF MY MOTHER AND ALL THE FDRS AND MUTUAL FUNDS ARE EITHER SURVIVOR IN MY FATHERS AND MOTHERS NAME. I DONT KNOW WHAT ELSE HE HAD. MY ONLY SISTER IS LIVING IN CANADA AND WHAT I I HAVE COME TO KNOW THAT MY MOTHER IS INTERESTED TO GIVE EVERYTHING TO MY SISTER. SO I WOULD LIKE TO KNOW IF I HAVE ANY RIGHT ON THE ASSETS OF MY FATHER. CAN I CLAIM INHERITANCE IN THE PROPERTY. I HAVE BEEN INFORMED THAT I CANNOT CLAIM ANY THING AS MY FATHER CLEVERLY BOUGHT EVERYTHING IN MY MOTHERS NAME.