Do you charge for monitoring and maintaining vacant units?

Because they are there everyday monitoring my tenant.

I'm wondering what system you'd  recommend for remote monitoring and security for the units?

Best thing to do is to monitor it.

- While home prices have risen for 97 consecutive months, July’s record-low mortgage rates have made purchasing the average-priced home the most affordable it’s been since 2016- Buying power for those shopping for a home is up 10% year over year, with home buyers able to afford nearly $32,000 more home than they could have 1 year ago while keeping their monthly payment the same- Each of the 25 largest markets are seeing their strongest affordability in more than 2 years, with falling 30-year rates elevating buying power for potential homeowners across the countrySix states – Louisiana, Arkansas, Iowa, West Virginia, Kentucky and Maryland – are seeing their lowest payment-to- income ratios in more than 25 years- While the fallout from COVID-19 continues to weigh on the broader economy, record-low mortgage rates and improved affordability appear to be providing a backstop for the mortgage and housing markets, with 19 of the 22 major markets analyzed seeing their median price per square foot rise from May to Junehttps://www.blackknightinc.com/black-knights-june-2020-mortgage-monitor/

If I dont have CO2 monitors on the property and someone dies because of the toxic gas, but I have an LLC set up, will the LLC protect me?

Plenty of us who monitor and post to BP. 

More things to deal with such as the fire alarm monitoring and certifications, more trash, and more personalities to clash. 

Also of course cams (*outdoor only), decibel monitoring devices, red flag policies for reservationists, ID requirements.. there are many mitigation measures that can be taken if you have the infrastructure for it, so parties just stop happening altogether.

As soon as you like, lender can't monitor or control when you move out.