The only problem in a apartment house is that if the they do not allow antennas. I deal with this on a daily basis, as I provide high speed wireless services in SoCal. But if there is one antenna, they can not stop you. Check the outside of the apartment building. Some only allow cablel to be installed and get a cut for it. There fore banning the Dish/Direct TV antennas.
If you have access to an exclusive use area like a patio or deck, the FCC will over ride whatever the landlord or management company says.