7 Break-ins in 2 months! -- HELP!

[Dylan DeBellis]

We have currently had 7 break-ins in the past 2 months... The homes are normally post punch-list and ready to list -- The appliances are normally the things that go missing, one home was in reno and the new flooring was taken. We have a project manager that we assume is to blame but my question is how to catch him? 

I've looked into GPS trackers for the appliances.

GPS tracker for his truck.

Different security cameras for the properties. 

Game cameras to hid around the properties.

Has anyone had similar issues? and do you have any recommendations on any of the measures listed above? or do you have your own methods? 

Any help is appricated!