I live in Calgary ... and have invested in Red Deer, Edmonton and Grand Prairie since 2003.
In my experience, invest where you live. (I still own one 'dog' property in Lacombe.) Both Calgary and Leftbridge are good markets. I'd welcome the opportunity to assist you in Calgary. :-)
Go Big! Do it right now.
I don't think you need separate meters ... depending on the market conditions ... sometimes you will include utilities ... sometimes you will charge upto 40%.
Yes - slippers are probably going to be fine for the lower tenant ... and carpets.
best.