It’s worth a look for sure.I️ totally empathize with you about becoming attached to a property you rehabbed.

Since the tenents don't have a lease - When I present them with a lease and they do not want to sign it how much time do I need to give them in order vacate premises.3. there is only one meter for both the water and electricity for each building (totalling 2) - Can I have the tenents pay for the electric by splitting the bill in half?

I bet your instincts are telling you no while the numbers are telling you yes.

In your example, it's a complete change in the buyer, so I'd be willing to bet that the bank is going to take issue with it. 

Also x2 to what @Antoine Martel  said in terms of FHA most likely being your best bet if you want to house hack.

I don't mind my portion of the mortgage, my thoughts are when I move out and this will be a 100% rental, I don't imagine I would get more than $1,300.00~$$1,400.00 total rent.

They’re often in total denial.

The value also seems to be tied to number of accounts or total network size sort of speak.

The total financing cost depends on how long you take to sell. 

First off - I'm total noob so trying to learn a lot.I'm looking to buy a condo or townhouse which I plan on keeping long term as a rental property.From looking at Zillow I noticed that there are some large-ish neighborhoods where there are few to no properties for rent, and others where there are several properties for rent in a condensed area.All things being equal, is it better to avoid areas where there's a high concentration of rental properties?