It seems like you may be looking for a call monitoring system like CallFire.

For electric, if each unit has a separate sub-panel, you can get a TED monitor (eg. https://www.amazon.com/TED-Pro-Home-Electricity-Monitor/dp/B00XTU9RF2) for each one of them by monitoring the supply line usage via your computer or phone.

another line to monitor rental mortgage payments each month, Rental expenses and so one.A quick signin to Mint then gives you a quick accounting on how your rentals are doing to budget as well as how your personal finances are going to budget.You can set up "pay me first" goals and rental "cash flow" goals to give you quick checks on your progress.You need personal and rental money separate bank accounts for sure.You need the tenant deposits in a separate back account.If you have all rentals in one LLC, (I do not) then you need all expenses in the LLC  bank account.rather than by rental property.Cheers, Buddy

Establishing and managing scheduling, resolving unforeseen construction issues, monitoring the budget and providing weekly updated reports are among the services I am looking to offer.

SDG&E is currently working on a plan to upgrade all of its readers to a digital network it can monitor remotely, but for now your meter must remain accessible to the gas man.As a locksmith I can attest first hand to the costly alterations owners and managers have had to implement due to these unfamiliar requirements.

I do have pics taken from my monitoring system but I don't know if that's enough if it doesn't capture then confiscating the item.

I just monitor the oil bills and keep an eye out for open windows in the spring and window A/Cs in the fall.

You will have to monitor how much megabytes in data transfer that you use while uploading your videos to the cloud. 

What are some of the resources you consider to be reliable and or invaluable for basic data collection and monitoring? 

Establish an effective tenant screening method and follow it, keep communications open, use a well written rental agreement, monitor tenant compliance to the rental agreement, and enforce the contract.