Implied Warranty of Habitability
Only applies to residential leases. Requires condition of premises to be minimally adequate from a health and safety perspective ("safe, clean, and fit for human habitation"). May be electricity, gas, garbage, broken window, absence of lock, heat (in a cold place), air conditioning (in a hot place), sewage, lead paint, rotting walls/ceiling, etc. Can get punitive damages (to discourage slumlords).