It might be somewhat difficult to find a condominium association that allows 2 dogs per unit, one of them being a 50lb. If they do accept 2 pets, usually there is a restriction to the weight of them - more likely 25-30lbs each. Would you like me to check the possibilies for you? I could give you the name of complexes that accept them. You could then drive by the areas and let me know if you like them. If so, please specify the areas - you mentioned south Palm Beach - size and price range and I will be glad to check it for you.
I can always check townhouses and villas - some homeowner's associations are a little more flexible on their rules as to number and size of pets.