Time To Consider Vacating?
If you have a lease for a fixed term (such as 6 months or a year), then the landlord may not raise the rent during that term of time (unless the lease says otherwise, perhaps with an “escalation” clause that raises the rent automatically if the annual rate of inflation – as measured by the Consumer Price Index – rises).
If you have a month-to-month rental agreement (oral or written), the landlord may raise the rent as often as he likes – so long as you are given proper notice of the rent increase ahead of time. State law often requires the landlord give the tenant at least 30 days written notice before the rent increase takes effect.
If you live in a community that has a rent control law, then the can not be raised unless the law permits. Most rent control laws permit landlords to raise the rent once a year by some percentage set by the city rent control board.