I can tell you that this has been a hassle since day 1.
This will be my last apartment, for sure.
Anyway, I may have found a way to avoid the neighbor's yard all together by attaching a 24 inch pole (parallel to the ground or on an angle, whatever is best for support) one of the columns on my balconey and then attaching the dish mounting pole to that and pointing it up over the roof. I'd basically be just extending a J-pole to get the dish to look over the roof.
Either that or the neighbor's yard. The neighbor next to me has both dish and direct tv out there.