And as it turned out, that junction location in the bathroom was a separation point, where I could at least separate the circuit almost in half, with a new wire run that is (second floor unit with a tenant below).

With rates less than half that, it's silly to continue using the same test.

What bank/ fin institution is easiest to open an equity line of credit ?

What bank/ fin institution is easiest to open a HELOC?

Then we will divide the bill in half and we will both be responsible for a half.

Got a few:Plan the work then work the plan.In order to be successful you only have to work half a day. 

Subsequent apartment additions are about half the cost of the initial investment.For another 30,000 BRL (~$6,200) I can have a second apartment on top of the first one.

To me, the numbers side of the business is the easiest to learn.

really fascinating and flexible, and you don't have to jury-rig a bunch of linux/sdr/etc stuff.. even though I know that's half the fun..     

If you can pick up a property under market value, you are half way there!