Legal Question in Real Estate Law in California

There is no distinction made between verbal and written leases or sub-leases; notices ending a rental must be given in writing. The master leasee [your roommate] must follow all the rules that the landlord must follow as to the master leasee. So it would seem the eviction is illegal. But once you inform him/her of that, they probably will just then give you a written notice of termination, so all you gain is a sight delay in having to leave. Check with the City if they have any tenant protection laws but I believe San Diego does not.