My daughter and I are on the mortgage.If I die the house goes to her. I want my share to go to my son.?

I have a house with 95 thousand still due. I also have a life insurance policy still good for 10 years. If I die the house goes to my daughter who is on the deed with me. Can I make a will to give my half of the house to my son if I die.As set up now the whole house would go to my daughter if I die as she and I are the only ones on the house mortgage My daughter is beneficiary of my $120,000 life insurance.She knows she is to pay off the house with the money. I would be afraid to make the beneficiary the mortgage company to ensure the house gets paid off, but I also want my son to have my 50% of the house once it is paid off ( if I die) Any advice?