She stated she fell the day before and busted her head on her dresser.

But I know some hair dressers that have set up their business in their homes and have had no issues over the years.

Basically you fit a twin, a small dresser, and that's it.That's why I wondered about just creating a half bath.  

This really isn't that difficult when you stand your ground and remind the tenants who the real home owner is.Tell them that you are going to schedule open houses and they are responsible for removing their valuables and/or locking them up in the closet or off the premises.The realtor will escort each buyer throughout the property so there really isn't anything to worry about as long as they keep their valuables out of sight.No one is going to open their dresser drawers or touch their clothes and stuff with an escort watching them.Never let a tenant dictate anything to you ever.

I furnish the house with the stuff they need for living like beds and dresser drawers etc, then play property manager and get the lawn then care of and such.

Storage is critical and I would hate to have to walk into another room to get my clothes. buy a dresser/wardrobe?

Other retailers have to go through a robust supply chain just to receive X dressers and beds. 

Heck, I might even furnish the upstairs with a few twin beds and a dresser and desk.  

She said she's a hair dresser. 

My wife had her hair dresser in Progresso, MX, 7 miles from our home.