Upon the filing of an independent action by a party, the court shall vacate a mediated agreement reached in a dispute resolution proceeding pursuant to this chapter, or vacate an order incorporating or resulting from such agreement, where:
1. The agreement was procured by fraud or duress, or is unconscionable;
2. If property or financial matters in domestic relations cases involving divorce, property, support or the welfare of a child are in dispute, the parties failed to provide substantial full disclosure of all relevant property and financial information; or
3. There was evident partiality or misconduct by the neutral, prejudicing the rights of any party. For purposes of this section, “misconduct” includes failure of the neutral to inform the parties in writing at the commencement of the mediation process that: (i) the neutral does not provide legal advice, (ii) any mediated agreement may affect the legal rights of the parties, (iii) each party to the mediation has the opportunity to consult with independent legal counsel at any time and is encouraged to do so, and (iv) each party to the mediation should have any draft agreement reviewed by independent counsel prior to signing the agreement. The fact that any provisions of a mediated agreement were such that they could not or would not be granted by a court of law or equity is not, in and of itself, grounds for vacating an agreement. A motion to vacate under this section shall be made within two years after the mediated agreement is entered into, except that, if predicated upon fraud, it shall be made within two years after these grounds are discovered or reasonably should have been discovered.