Effect of the service of notice and the certificate.

7. From and after the service of notice of any certificate under Section 6 upon a certificate debtor, (a) any private transfer or delivery of any of his immovable property or of any interest in such property, shall be void against any claim enforceable in execution of the certificate; and

1. (b) the amount due from time to time in respect of the certificate shall be charged upon the immovable property of the certificate-debtor, wherever situated, to which every other charge created subsequent to the service of the said notice shall be postponed.,