The answer is yes! It is actually a perfect application for a mini-split system.
You will need to confirm with your association as to whether or not they allow it (as it will be seen from the exterior of the building), but other than that it is a great option.
For more information:
Read "I can't afford geothermal. Is an air-to-air heat pump my best option for heating?" a Q&A answered by Randy Potter.