I don't avoid very high income earners, it's just that the unit I'm renting is a small house I could afford to live in at the time I bought it. This unit naturally fits a certain, soon to be upper middle income young family. However, I'm currently renting the units to a couple who just moved into the city that each makes more than what my wife and I make.

My biggest concern with them was that they'd only want to rent for a few months to get to know the city before buying a place of their own. A missed renewal is very expensive (lost income) and time consuming.