I looked into a condo that's in a complex that allows for weekly rentals. With all expenses said and done, ROI was similar to what you'd get in a 1% rule SFH, but naturally you have to advertise, coordinate cleaning, and all that other garbage... I say forget it, unless ROI is high enough to make it worth the trouble of more active management. And there are properties like that--vacation rentals and such--but demand a high ROI for these troublesome sorts of investments, as they're really jobs AND investments, not purely passive at all.