My mum dies with making a wills so that goes to my dad now my dad has pass away can he make a will and give it to my sister and live me out

Simple answer to your question, whether your father can make a Will, disinheriting you and leaving all his assets to your sister -- YES.  However, you should consider whether your father was unduly influenced by your sister, whether there was any fraud or duress in making that decision.  You can hire an attorney to investigate whether everything was done properly before the Will is ultimately probated.