The fact is, making any sort of broad statement about what you can or can't do, landlord be damned, is a tough thing. You get into a morass of local and state

The fact is, making any sort of broad statement about what you can or can't do, landlord be damned, is a tough thing. You get into a morass of local and state laws that may very well vary from jurisdiction to jurisdiction. This is assuming, of course, it's not just easier to extend the courtesy of talking to the landlord in advance.