For instance, properties with an accessory dwelling unit (ADU) on the lot that can be implemented as a long-term or short-term rental can perform exceptionally well.

If my property is a duplex, I'm assuming I can add the 3rd unit as an Accessory Dwelling?  

For example, buying a triplex and converting the garage into a four plex and converting it to an Accessory Dwelling Unit.

Does anyone have experience with ADU's (accessory dwelling units) in any market, but particularly Cincinnati?

•Gear-Friendly Accessories: I provide rain ponchos, umbrellas, and even color-coded towels for drying off pets at the door.

which is allowing homeowners to build an Accessory Dwelling Unit (ADU) on their property.

It also says under the accessory uses section: "nonhabitable structure requiring a building permit." 

The property is in an evolving area with an overlay for Detached Accessory Dwelling Unit.

If your local market is very active and homes are selling fast, you may be able to get by with doing less.Your Home’s Condition: If your home is vacant or has a unique layout, using a professional stager who can bring in the right furniture and accessories may help buyers truly visualize its full potential.Your Budget: Talk to your agent to get an idea of staging costs in your area, as it can be the difference between your house selling and sitting.

The bullet in the response that is standing out to me is:"(7) The accessory dwelling shall not be a short-term residential rental, as defined by City Code section 3-2-152(a)(2), for a period exceeding 120 days per calendar year."