She rented out the second bedroom to a traveling nurse and found that the rental income not only covered half her mortgage but also let her save for her next property.

I have seen it on padsplits in ATL on the brokerage side - best way to mitigate risk is on the purchase AND exterior maintenance. 

They look rough on the exterior and most of them are located in the class C neighborhood.

We are on all of the above, as well as:- Marriott Homes and Villas- Google Vacation Rentals- Jetblue Airlines- Allegiant Airlines- about 10+ more and soon to be American Express Travel and Hyatt's portal. 

The one challange is maintaining the exterior, of the home being so close to a school it gets beat up.

The target demographic for MTRs is traveling nurses.

They should become like current-day travel agents: far fewer than pre-Priceline, but well-compensated for arranging high-dollar, complex trips. 

As Kevin points out, traveling nurses make good money, and their employer pays for their housing.

Traveling Mailbox is a great value. 

It's a former adult care home, so the layout is shared bathrooms, and this would allow me to not have to change the plumbing layout while offering a competitive price-point and unique experience to travelers.