Focus your brain on the fact that QuickBooks is just a piece of paper on a monitor, and your keyboard is your pencil. 

They've selected the tenant and are (allegedly) monitoring the property, so they're usually best suited for the job.

Monitor and Adapt: Continuously monitor the market and be ready to adapt your strategies as conditions change.

Currently using Cozy for rent collection, but for past experience with C-class properties I  used National Association of Independent Landlord’s rent collection/monitoring service, which had the unique advantage of actually automatically calling tenants when rent was not paid on time, which was great for tenants that were not great over email. 

That is fully automated in rent monitor.

In the Carr Fire, my customer was evacuated for 2 weeks and knew they had a home to go back to as they could monitor their production from their solar system so knew the roof was still there.

I have used cozy.co successfully for four years father a negative experience with Erentpayment.com.check out www.cozy.co - competitive fees, many added features, including listings, applications, credit monitoring, transmittal of leases, maintenance requests, etc. 

Before you move the thermostat you could go a slightly less expensive route of a smart thermostat which would allow you to "monitor" the temperature remotely. 

I also lock exterior A/C circuit boxes and label the units, cage and circuit box with A/C specific alarm stickers that I had made up.I will frequently install an inexpensive alarm system (not monitored) which gives me peace of mind between tenants and acts as a selling point when showing the units.I've doubled up on door stops (to prevent doorknobs from going into walls).

However, I would suggest to others that I've been using Roofstock as an additional resource to monitor rents in areas and also an idea of approximate cap rates in areas.