Allegedly great deals?

[Brandon Rich]

So looking into duplexes around my area I see a handful for sale with tenants already in place, and what seem to be decent profit. maybe 300-500 dollars a month? Thats based off rent income vs what I pay for the property. Whats the problems of taking over someone elses tenants? why would they be trying to back out of a property making them good profit? what are the questions to ask and things to look out for and be aware of when having a MF property and taking over from someone else?