Not likely unless it was a fancy camera you could write scripts for. Even if you could this is not the best idea since it would be exposed to other people at the complex. Cameras are known to have rather poor security and software patching so you really want to isolate them.
How much do you have to pay. You likely can pay for 1 device and run as many as you want with the proper setup. This is the same method college students use to connect to a college wifi network when they need ethernet.
What you basically do is hook a wifi radio to the wan port of a standard router. All your devices would connect to your router using your wifi. The the router would connect to the complex. You would take a PC and log in to the web page...