I suspect you would go much further, faster, if you take on the tasks that add the greatest value. 

Search for land on internet How did you finance this deal?

This is pretty much how banks do things too - the idea is that not only do you have to afford your rent - but also your electric, your food, your car, your insurance, your gas, internet, etc.  

The Internet, social media, will repeat information. 

However, I am trying to accomplish this task by purchasing under market value (every investor dream).

Scope of Work: Clearly define the tasks and responsibilities the contractor will undertake.

I would go with someone local, someone you know, someone who is honest and trustworthy, someone who knows what they are doing, rather than a big name you saw on the internet. 

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 for other issues, I have handymen I call to handle or i can use Task Rabbit/Thumbtack to handle issues that are simple and I don't want to handle.  

You'll need reliable local contacts, such as a cleaning crew and maintenance professionals, who can handle on-the-ground tasks.