There are a hundred ways to get caught doing illegal financing contracts, things happen in life, death, bankruptcy, medical issues, incapacitation, other law suits and just mentioning something to the wrong (right) person can blow these deals apart.

The 2/1 yielded traveling medical professionals, the 4/3 a recently divorced man with children and grandchildren in the area he wanted a large home for them to visit and stay in as they wish while he finalized his living situation.

Pay attention to the workers, kids shoes, medical bill, mom's car broke down, you help them and they will help you!

I can’t speak of the details of renter insurance but your insurance will likely cover medical issues of guest.I had a slip and fall involving a tenant and her guest.

My LTR tenants were all in the medical field. 

If they are interested, they will ask YOU to tell them more.Speak of the time demands of the medical industry, the long hours, the physical and mental demands and tie it to the joys of passive investing.

However, I wouldn't limit yourself to travel nurses or even to travel medical professionals especially in a very sought after area like Austin, TX.

Medical complex.  

Find a market with huge medical growth....for instance, my city has 4 hospital networks and 3 colleges that have nursing programs

It has an area around the Brandon Hospital full of doctors offices and laboratories etc. as Florida is about half, retired persons who need easy access to Medical.