If you are not just coming to Halifax to visit, and you are looking to try to understand how Halifax is laid out… there are different parts of what is known as the HRM (Halifax Regional Municipality)
Halifax was once much smaller than today, click HRM_DISTRICTS_2012 for a PDF of all of the districts of what is called Halifax.
For a list of the different maps of the HRM head to the Halifax website here to get more information on the different districts in play.
When you are looking for a place to live there are a number of web sites that will be able to help.
Kijiji.ca – If you don’t know kijiji it is an online marketplace, where you can list anything for sale. It is also very searchable when it comes down to cost / area / and if they allow pets.
Here is another working list of where you can look for condo’s / apartments if you are moving to Halifax.