Can i get a mortgage to buy my dads council house?

My dad is a council tenent my plan was to move back home to buy his house with him as he cannot get a mortgage.the reason to buy his house is that we get a big discount we can not afford houses on the current market,this way we get on the property ladder but at a much less price has any one done this and could any one help with mortgage advice.thanks
Answer
To qualify for the right to buy you need to have been a public sector tenant for a minimum of two years, so you will need to move in with your father and have your name added on to the rent book for 2 years