My question involves a roommate in the State of: New Jersey
My roommate is not on my lease, nor did we sign any personal agreement. He refuses to clean up after himself (dishes, garbage, personal items) - and he and his friends smoke marijuana. We had discussed that he could smoke it in the living room as long as the whole apartment didn't start to smell like it. Well today when I woke up, it did, and it's started creeping into my room even with the door closed.
He has not actually given me any money for rent, utilities, or any other apartment purchases. Instead, he's been keeping a running tally of how much he owes while subtracting the price of things he buys, like when he goes food shopping or buys things for the apartment.
Since he's not on the lease and there's no written contract am I allowed to ask him to leave? I have no problem giving him a month or so's notice I just can't live with him anymore.
Thanks in advance!

