Be sure to actually contact the landlord for verification—fake references are more common than you’d think.In-Person Meeting: Meeting potential roommates in person is a great way to get a feel for compatibility.

I can also find out everything about this person's license in less than 10 minutes.

We actually just had several go in on Livingston ave on the west side where I'd not normally think would be desirable, but they look great and really brought the block up.So I'm a huge fan personally from seeing them go up in my own area.  

This might give a one-time (non-scalable) boost to cash flow, offer multiple value-add options, and allow the house-hacker peace of mind, via the assumed mortgage, in long-term breakeven or positive cash flow in the event that the value-add plans end up not being executed, and/or the person has to move out, and rent by the room or STR become unavailable for some reason at a future date.

If it was me personally, I would not.

Cash flow is constantly promoted and pushed, and often, the personalities lack long-term experience, so they can't talk about the best reasons we should be investing.  

It started with really buying my own personal home, then selling and making a small profit.

Both offered up to $40k, 12-14% rate which is higher but not bad for an unsecured personal loan. 

The mortgage payment is $1,000 on each house, so you earn $500 per house or $2,000 monthly.

Yes I have owned 4 personal homes before but never an investment property.