The biggest mistakes people make in real estate, there are lots of them. One of the major mistakes is buying the wrong investment in the first place, holding the investment too long and letting your investment get stale to the point where you're making tax decisions instead of yield decisions, not treating your tenant properly to the point where you have vacancy, fix up, and cost of re-rental every couple years. Your tenant is one of your largest assets and many managers don't treat them as such. Those are the big ones. Also, in too many cases, people buy something just because they can get a better rent to value ratio, but they're buying something that possibly won't go up in value or can be duplicated, and the price will fall.