I can think of mortgage, taxes, insurance, STR insurance, water/sewer, electricity, trash, internet/cable, cleaning (can pass through), supplies, and software.

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

It involved installing meters inline that reported wirelessly to the internet and allowed you to bill each tenant.  

It will feed you BS for any complex analysis/task, and the more specific you are, the more specific and convincing the BS is (this is EXACTLY what I run into on Medium-High complexity code projects).

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

As a professional property manager myself, I understand the essential tasks that investors are looking for from their property manager, like rent collection, maintenance, and tenant screening.

The advantage is, it's not thousands of dollars a year and I could email my VA pretty soon to do those annoying repetitive tasks I don't like.

with rates and prices where they are it is not possible to Internet right now.

I'm not just throwing stones to be a critical stranger on the internet.

Along with the "closing coordinators", the "transaction coordinators" perform a specific set of tasks in the overall process.