My roommate is not following the conditions of the lease. Can I evict my roommate?
Roommates cannot evict other roommates. Only the landlord can evict tenants. Eviction is a legal process that must take place in court. "Self-help" evictions, such as locking out roommates, removing a roommates's belongings without permission, etc., are not permissible.
I am considering moving in with a roommate for the first time. What kinds of questions and concerns should my prospective roommate and I discuss prior to moving in together?
See Suggestions for Avoiding Roommate Disputes under Landlord, Tenant and Roommate Resources