All that means is they are buying the low-hanging fruit which I don't want anyway.

Storage areas can include built-in cabinets, closets, attic space, and even outdoor sheds, etc.Laundry: Including a laundry area and machines is a big bonus for tenants, as they compare that with apartment living where they would have to use common laundry machines that require payment.HVAC: Make sure to include an effective dual heating & air-conditioning system to service the ADU, so your tenant is comfortable in the unit.Kitchen island: It may be difficult to squeeze in a kitchen island in a small ADU, but it’s a big bonus if you can make the space.

@Jacob FussellTo address the actual question as ethics you must not have found any fruitful deals yet.

My fear is theft, using each other’s machine, etc.

Like for cleaning feeding tubes, diapering, the air / water dishes for various machines. 

No professional photos.Photos not staged properly (clutter, beds poorly made, etc.)Underpriced, especially for events and holidays.None of the small things that folks notice and mention in reviews, such as bedside chargers, noise machines, well stocked kitchen, local coffee & snacks, etc.

I even have little signs up telling them how to use the washing machine (always leave the door open to prevent mildew) and dryer (always clean the lint filter) and kitchen sink (no FOGs, no coffee grounds) because I can get away with it renting to kids.Same kid just put a hole through the door with the doorstop.

But it was the washing machine.

Well time tested that the best deals are done driving for dollars....So you can use an app called Deal Machine...right on the spot to the point where as your parked in front of the property you can send out a post card...

Some stains are better removed without even using a carpet cleaning machine.