A homestead as provided by law, shall be exempt from forced sale under any process of law, and shall not be alienated without the joint consent of husband and wife when that relation exists; but no property shall be exempt from sale for taxes or for the payment of obligations contracted for the purchase of said premises, or for the erection of improvements thereon; Provided, the provisions of this Section shall not apply to any process of law obtained by virtue of a lien given by the consent of both husband and wife, and laws shall be enacted providing for the recording of such homestead within the County in which the same shall be situated[.]