Does marijuana smoke stain the paint on ceilings?

[Trevor Levine]

I just met with a prospective tenant who informed me that she smokes a little marijuana at bedtime. She's willing to smoke either inside, or outside in the back yard of my triplex (which I also live in). I'd rather not smell it. But if she smokes inside, might it stain the paint on the ceiling? Thanks!

[Bjorn Ahlblad]

If smokers have been living in a unit for years everything will be covered. A little marijuana at bed time should be OK.