A condominium is a building or a complex of buildings containing a number of individually owned apartments or houses. Unlike a cooperative housing society, wherein the land or property belongs to the society, when you are part of a condominium or apartment owners’ association, every apartment owner has the legal title of his or her house along with a percentage of the common amenities.
No. owner of a condominium does not require permission from anyone.
regarding the second question, consult some nearby lawyer.