High rise buildings generally limit the weight of dogs to 24 lbs. If you don't want a single family home, you might look in a townhouse or free standing home in a "condo community". Aventura has several options. Call or email for more ideas. 305-940-7892 or email@example.com
There might ne other solutions to your pet issue like surrounding cities or renting a home instead of a condo. While the majority of Aventura is condos there are some alternatives.Call me to discuss 786.529.LIST (5478) or email me at MoveRealEstate@yahoo.com
Most of the large condo buildings do not allow 50 plus pound dogs. Some buildings do and it all depends on if the owner will accept them. There are some adjacent cities where it is much easier. It all depends on your price range and what you are looking for. Let me know and I would be happy to assist you.