Requiring and providing for inspection of certain residential buildings under the state building code by an inspector selected and paid for by the building owner; authorizing local government units to certify inspectors qualified to perform the inspections and to restrict building owners to the selection of qualified inspectors, granting building owners the right to choose among certified inspectors, exception; authorizing local units to require owners or inspectors to file a record of the inspection with the local unit and limiting the charging of fees (ra)