Trulia Voices: When shopping real estate in SW Florida, how does one ensure a home has no Chinese drywall?

Trulia Voices: When shopping real estate in SW Florida, how does one ensure a home has no Chinese drywall?http://www.trulia.com/voices/Home_Buying/When_shopping_real_estate_in_SW_Florida_how_does_-123793Can builder's records be accessed? Can homeowners be asked to provide proof?en-us