UPDATE: A reader asks, "What skills are best for being a landlord? Plumbing? Electrical? Painting?" The answer is those are helpful skills to be sure, but the best skill is to be rational and skeptical. The minute you put a property up for rent, you will be approached by all sorts of sketchy people - and also decent, honest people. The trick is to know the difference between the two.
Go with your gut. If something sounds too good to be true, it probably is. If someone appeals to your religion or race or nationality, they are trying to bamboozle you. If an attractive young woman thrusts her breasts in your face (yes, it happened to me!) and offers to pay rent in CASH, chances are, something isn't right (might need a red lightbulb for the porch!).
On the other hand, you don't want to be so skeptical as to chase off good tenants. It is the hardest thing to do! People skills are harder than mechanical skills - and often what sinks any business!
You have to be rational and dispassionate and think hard and carefully and not make any snap decisions. You are gambling a lot of money here, and could go bankrupt if you make some serious mistakes. That's about all I can say.