The rights you can’t sign away
California tenants have three core rights: the right to a safe, livable home; the right to have serious problems repaired; and the right to be free from illegal retaliation or harassment for asking. These rights apply whether or not you have a written lease, and they cannot be signed away.
You also have the right to privacy, meaning a landlord generally must give proper notice before entering. You are protected from illegal "self-help" evictions, such as changing the locks, removing your belongings, or shutting off your utilities to force you out. And you have the right to the return of your security deposit, minus only lawful deductions.
If a landlord refuses to fix serious conditions, you may have several options — from putting your request in writing and contacting a housing inspector to pursuing a legal claim. Which path makes sense depends on your situation. A short, free conversation can help you understand which of these rights apply to you and what to do next.
This is general information about California tenant rights, not legal advice. Every situation is different.