if you have a month to month lease, can the landlord raise the rent every month
If you have a lease for more than 30 days (e.g. 1-year lease), your rent cannot be increased during the term of the lease, unless the lease allows rent increases. If you have a periodic rental agreement (month-to-month), your landlord can increase your rent, but must give you proper advance notice in writing. (Civil Code Section 827 (b)).