I've had no issues with my rental properties - depends who you rent too; stop renting to crack whores, and you'll have good luck. I bought 5 house all next door to one another, on a street only blocks away from the university. I gutted the houses, turned them into triplex's - resulting in 15 apartments, within walking distance of a mall, the 2 universities, and the hospital - students and medical students eat that shit up, and rarely complain. Neighbours are all the same style of people, since the houses are all next to one another - so they don't complain about one another.
It's all about how smart you are.
