My brother has been staying with me, my boyfriend and three kids for about three years and I want him out. What do I do?

This isnt the first time i have let my brother stay with me,but it is the longest. He doesnt clean up unless i ask him to and he eats my sandwich bread at night when we go to sleep. I just recently found him a job cause he wouldnt do it himself. Now he is drinking heavily every night and wont save his money to move out.