Condo Sound Insulation, Warranty
Ask the developer to provide the &quot;sound transmission class&quot; rating that was specified ( and guaranteed if it was ) and how that was implemented.
I.E. what products or building techniques were used in the condo to achieve those spec's. Then cut the wall open to see if indeed that is true ???
Was there a guarantee in writing that you would not hear a certain decibel level of sound or the everyday living of the people in the adjoining units?
Attend the association meetings and Talk to other owners to see if they have the same issue.
Consult an attorney