My boyfriend's dad is the co-signer on my boyfriend's lease, since he doesn't have good credit score. My boyfriend and his dad are both on the lease. Now the issue here is that his dad has been paying all the rent and all the bills, then his dad said to my boyfriend that he doesn't want me at the apartment while my boyfriend does, and his dad's excuse is that he has all the say on whether or not he wants me there because he has been paying all the rent and all of the bills. I'm just wondering if my boyfriend's dad is allowed to do this, or if my boyfriend actually has say on this as well, considering he is on the lease, but his dad is a co-signer.There is a written lease agreement, my name is not on the lease. Only my boyfriend and his dad's name are on the written lease signed. I never signed the lease, my name is not on the lease. They are allowed to have guests there, according to the written lease.