That could certainly be traditional basic key locks, key locks with a master key through a service like LandlordLocks.com, Schlage SmartKey system, or even the more basic, non-smart lock variations that most of the major lock companies offer as a parallel to their full Z-wave/Zigbee variants, often at 1/2 the cost. 

A good number of those renters have chosen to NOT use the money they are given to pay rent and are riding the (no eviction till August 15) wave. 

Even cash offers have an inspection... unless you wave it of course but ... that’s up to you.

I know that IBM has being going through waves of layoffs since March, but haven't read anything on plant closings.

So the smart money changes in the gold/silver for way more houses then they had before, and ride the wave back up.

No system is perfect, but I found this helped along with checking in on your properties.Having the smart locks, that run on z-wave or wifi could mean an extra expense for you.They also sell trap screws which were helpful to prevent tenants from changing locks on you.

(Note- I cannot dismiss the need for an efficient elevator model of these (Silver wave)- but the costs go up significantly)We are moving into a product that is all steel, panelized, and uses our repetitive design.  

I've been trying hard to get this wholesaling thing going for 6mo I've studying and studying and cold calling sending emails and nothing what am I doing wrong..my mind says give up but by my heart won't let me so I'm going to just ride the wave...

This way they feel better about you not raising the rent for 12 months but if they get stupid you can wave good bye 30 days later 

I don't know your personal situation, but I know several seasoned investors who are liquidating because they believe the wave is cresting.The premise behind those decisions is driven by a concern with state of the macro level economy rather than Nashville's future health.