Vacant or Rented, which do you prefer as an investor?

[Nitanga Jean De Dieu]

When you are shopping for a rental property do you look for something that is already renting or do you prefer vacant unit so you can bring in your tenant type. 

[Jesse Lynch]

I will add this caveat:  If it's a larger building with professional management, I wouldn't want a completely empty apartment building that I have to fill (or it would definitely affect the purchase price/game plan).