FAMILY LAW ACT 1975 - SECT 85A
Ante-nuptial and post-nuptial settlements
(1) The court may, in proceedings under this Act, make such order as the court considers just and equitable with respect to the application, for the benefit of all or any of the parties to, and the children of, the marriage, of the whole or part of property dealt with by ante‑nuptial or post‑nuptial settlements made in relation to the marriage.
(2) In considering what order (if any) should be made under subsection (1), the court shall take into account the matters referred to in subsection 79(4) so far as they are relevant.
(3) A court cannot make an order under this section in respect of matters that are included in a financial agreement.
FAMILY LAW ACT 1975 - SECT 90KA
Validity, enforceability and effect of financial agreements and termination agreements
The question whether a financial agreement or a termination agreement is valid, enforceable or effective is to be determined by the court according to the principles of law and equity that are applicable in determining the validity, enforceability and effect of contracts and purported contracts, and, in proceedings relating to such an agreement, the court:
(a) subject to paragraph (b), has the same powers, may grant the same remedies and must have the same regard to the rights of third parties as the High Court has, may grant and is required to have in proceedings in connection with contracts or purported contracts, being proceedings in which the High Court has original jurisdiction; and
(b) has power to make an order for the payment, by a party to the agreement to another party to the agreement, of interest on an amount payable under the agreement, from the time when the amount became or becomes due and payable, at a rate not exceeding the rate prescribed by the applicable Rules of Court; and
(c) in addition to, or instead of, making an order or orders under paragraph (a) or (b), may order that the agreement, or a specified part of the agreement, be enforced as if it were an order of the court.
HI there if you see the above sections of the family law legislation - the only jurisdiction of the court is to see whether the contract (financial agreement) is enforceable - they do not have the power to regulate the terms and conditions of the financial agreement provided it does comply with the following section:
FAMILY LAW ACT 1975 - SECT 90G
When financial agreements are binding
(1) A financial agreement is binding on the parties to the agreement if, and only if:
(a) the agreement is signed by both parties; and
(b) the agreement contains, in relation to each party to the agreement, a statement to the effect that the party to whom the statement relates has been provided, before the agreement was signed by him or her, as certified in an annexure to the agreement, with independent legal advice from a legal practitioner as to the following matters:
(i) the effect of the agreement on the rights of that party;
(ii) the advantages and disadvantages, at the time that the advice was provided, to the party of making the agreement; and
(c) the annexure to the agreement contains a certificate signed by the person providing the independent legal advice stating that the advice was provided; and
(d) the agreement has not been terminated and has not been set aside by a court; and
(e) after the agreement is signed, the original agreement is given to one of the parties and a copy is given to the other.
Note: For the manner in which the contents of a financial agreement may be proved, see section 48 of the Evidence Act 1995 .
(2) A court may make such orders for the enforcement of a financial agreement that is binding on the parties to the agreement as it thinks necessary.