If you are someone who has a bigger portfolio that you manage I would suggest appfolio or yardi.  

@Luke Spencer I am not on the management side but I can tell you it took 2+ years to fill 300 units at one of our facilities and the other just hit 300 units in 12/13 months so it really depends on the demographics, and local housing market trend, the more people moving in and out the higher the demand for storage.I think if you're looking at a saturated market then the upfront cash to turn the warehouse into self storage is not a good idea but then again, maybe those operators are on back roads ( low visibility ) and don't push google ads well.

Quote from @Salvatore Ross: When it comes to finding the perfect property to manage/co-host, what’s on your must-have list? 

Would this make you question your property managers?

You can start by going to www.narpm.org to search their directory of managers.

I didn't hire my first assistant until I had 150 doors under management.

I currently use Gold Key Property Management in Anderson IN, and have been very happy with there services.

I am under contract for a property out in Columbus and they are one of the few property management companies I am considering going with! 

Does anyone have any referrals for property managers in the Los Angeles area who specialize/ have experience in mid term rentals? 

We have a STR managed by a property management company.