Joint purchases
12.—(1)  A member who has purchased a residential property jointly with one or more persons shall not be entitled to make an application for the withdrawal of money under these Regulations unless the relationship between the co-purchasers or co-owners of the property falls within any of the following categories:
(a)husband and wife;
(b)parent and child;
(c)brother and brother, sister and sister or brother and sister;
(d)grandparent, parent and child;
(e)grandparent and grandchild.
(2)  Notwithstanding paragraph (1), the Board may in its discretion permit any withdrawal of money under these Regulations by a member who has purchased a residential property jointly with one or more persons, although the relationship between the co-purchasers or co-owners is not within any of the categories specified in paragraph (1).
(3)  Where two or more co-purchasers or co-owners of a residential property each make an application for the withdrawal of money under regulation 5 or 6 or both, the total amount of money which may be withdrawn by them under either or both of those regulations shall not exceed the limit prescribed by regulation 8 or 9, as the case may be.