Existing law requires the lessor of a building intended for the occupation of human beings, in the absence of an agreement to the contrary, to put the building into a condition fit for that occupation and to repair all subsequent dilapidations thereof that render it untenantable, except as specified. Existing law describes the affirmative standard characteristics that, if lacking, make a dwelling untenantable. Existing law requires a city or county that receives a complaint from a tenant, resident, or occupant that a building contains lead hazards or is substandard to perform an inspection of the building or portion thereof intended for human occupancy, document any violations, advise the owner or operator of each violation and of each action that is required to be taken to remedy the violation, and schedule a reinspection to verify correction of the violations, as specified.