omm it generally states this in the lease. But yes, they need to have the smoke detectors and service on the appliances if they come with the rental. Granted, some people have it incorperated in the lease that if its under 100.00 that it is the responsiblity of the renter to take care of it. And if over, to obtain a receipt and they will pay the difference. And the painting, they are to supply the paint.. but it generally doesnt need to be done, unless they state it or ask for it, and then you may have to paint it- but they can supply it.
And a cap on increases? Omm, well, if the market goes up, that is generally what states an increase or if certain major instances or additions take place on the rental unit. But otherwise, I havent heard of a cap. They can keep going up and up, but they will stop as soon as they see they have no one to rent the place. I could be wrong though- on the cap .. so, that is just in thought and from what I have heard around where I work.