This is silly. If a hundred-pound dog is permitted in the apartment complex, why not a mini (a miniature horse)? Minis are increasingly being used as assistance animals for people who are allergic to dogs. They wear little sneakers so they can climb stairs and are certainly no more dirty or smelly than dogs of the same size. They are also much less likely to frighten people, much less bite, and their droppings aren’t as disease-ridden as carnivore droppings are. And it’s no more unkind to keep a mini in an apartment than a large dog.
The people in this apartment complex are being very short-sighted. They’ll be lucky if this lady doesn’t take them to court.
And she will never win, if you want to check there are thousands of cases about livestock inside the city limits.