I would say close monitoring and a more stringent clauses.

You can limit and monitor the amount of "occupants" per apartment as well as stand firm against loitering (ie: prohibit tenants from hanging out on the front porch) in order to reduce gang activity.

They will need to monitor changes in those laws as time passes, and make necessary adjustments.

Auto pilots like in airplanes are great but need to be monitored.. 

Credit bureaus have no way of monitoring your income.

Even though your smart lock app will monitor battery usage so you should have the ability to get the batteries changed before they go out, occasionally you may encounter a problem and will want that key for backup.

I'm curious about my eligibility for real estate professional status for tax purposes, given my active involvement in the following ways:I actively manage our one STR and the two LTRs (with plans for cost segregation for all three properties).I handle property management directly, without a property manager.I have already dedicated 750 hours to real estate activities this year.I'm even open to taking the realtor exam if it aids my qualification as a real estate professional.Almost daily (and without fail on weekends), I engage in various real estate tasks: visiting our property or properties, tending to the yard, monitoring and adjusting short-term rental pricing, managing tenant and guest expectations, scheduling cleaning and maintenance, caring for the lawn, and more.My primary question is whether the activities mentioned above are sufficient to qualify me for real estate professional status, or if additional steps are required for eligibility.

However, I may still need to monitor how long a house stays on the market as this can affect my margins.

I was worried that the utilization might have an affect on my score as I am very particular about my personal credit ( 807-830) but I have monitored all 3 credit bureaus and none of them even show these accounts as open accounts.

Requires a great PM and consistent monitoring.