You can easily get an idea of how much you should be setting aside for repairs and renovations and be able to anticipate when a big expense will occur. 

Most property management contracts put the tenant selection process in the hands of the property manager and can easily leave you out of the process.

For instance, I sometimes look to buy properties that have a "weird" floorplan that turn other buyers off, but which I know I can easily fix to force appreciation and/or rent--that might be THE deciding factor in whether I buy the property, but there isn't ANY data representing that factor!

One bonus about you paying the internet and owning the equipment is you can more easily add security cameras and/or a security system to the router/modem as the tenant won't be taking the modem/router when they move out as you will be owning that equipment. 

Poking around online we should be able to build onto (second story) the property and “easily” permit as a duplex. 

If you factor in those things you could easily get a 50%+ ROI.

Otherwise, you can give notice to do an inspection (check batteries in smoke detectors, change the furnace filter), but their personal life is their problem.

If someone would have only handed me a 10$ copy of rich dad poor dad when I graduated high school ( came out same year 96’) i could have easily been long retired as a millionaire today

And give or take what New Orleans does with their STR permit rules come March I can easily offset this number greatly with a few nights a month on AirBnB/VRBO. 

On Verizon its just called "Call Filter".