There are cases of local governments delaying payment due to budget constraints.

Similar to the comments above on using FurnishedFinder, also check Airbnb and sort for 30+ day rental options. in addition, I'd recommend talking to the local university and hospitals nearby by calling to their various departments.

With that in mind, my first idea was to buy a condo or a house in my local area (Palm Springs, CA) and use it as a long term rental. 

I was able to join the local Facebook pages for investors that are local to my area. 

Quote from @Kyle Carter: The comps that come from local real estate agents will be the best for this one.

It would be local for you.  

You can also search for local FB groups that specialize in longer term stays.

“Money goes where money is treated best.”Your future ability to attain and maintain financial freedom depends on the city where you invest.Investment TeamAn essential location selection criterion is an experienced local investment team.

I would be self managing the property because I know the area well, have local connections to help out if in a pickle, and could get there in a day drive if need be. 

Also one is generally hyper local (at least for a one investor) and REITs are generally not.