The family home extrajudicially formed shall be exempt from execution, forced sale or attachment, except:
(1) For nonpayment of taxes;
(2) For debts incurred before the declaration was recorded in the Registry of Property;
(3) For debts secured by mortgages on the premises before or after such record of the declaration;
(4) For debts due to laborers, mechanics, architects, builders, material-men and others who have rendered service or furnished material for the prosecution of the building.