Hi Whoopi,
What do the by-laws of your building say? In our complex many of these questions are covered in by-laws but most residents have never read them. Your by-laws may or may not cover this.
In NSW most residential buildings allow two people per bedroom based upon their DA or other regulations. Therefore in our complex (and many others) we allow owners to obtain two access control cards per bedroom e.g. a one bedroom unit may have two cards, and a two bedroom unit may have four cards. For units that are tenanted, it is suggested that you have as many access cards as their are people on the lease documents, plus ones for the property manager and owner if appropriate.
If a complex has a separate remote for the garage area, I have seen them being limited to the number of car parking spaces on title. This stops residents getting extra remotes to be used by other occupants or friends to park in visitor spaces when they should not.
In relation to cost, I have been told of some complexes charging $220 non refundable per access card. In our complex we had a charge made up of both a refundable and a non-refundable component. This ensures that people will return access cards when they don’t need them anymore.