This depends heavily on the CIC/HOA with each individual building. For condos this is not as well recieved because you own the space inside of the walls, not the floor and walls. Pets put extra wear on these, and thus the stringent regulations. With a larger dog your odds go even lower, and depending on the breed, may not even be allowed at all. Make sure you review any and all documents before purchasing or signing a lease, as an owner living with pets not being caught is a common mistake for "I can do that too."
I love my dogs dearly and I'm not going anywhere without them!