Benzinga and Yahoo Finance LLC may earn commission or revenue on some items through the links below. Kevin O'Leary has a housing rule that might sound like a punchline until you realize he meant it. If you're single, don't buy a home. If you're married with no kids? Still a no. In fact, unless you're actively raising "let's say, two kids," O'Leary says renting is the right move—and he's dead serious about it. Back in a 2018 interview with CNBC's Make It, the "Shark Tank" investor offered up a two-question ...