My partners ex wife is requesting all my financials

My partner (who I live with and have done for over a year) is going through his financial process of divorce (already divorced) hi ex wife is requesting I been made an 'intervenor' and 'disclose financial record' I have given details of my income on his income and exp part of form E. Can she request bank statements? I'm really against giving them purely as this woman is a massive trouble causer has caused an unbelievable amount of stress and won't stop until she has made every attempt to ruin him. She has requested she receive the house (inc £100k equity) 50% pension share (£92k pension) and a 10k payment or 250 a month spousal maintenance. She works part time however with uc top up, child Ben and cm payments she receives around £27k a year net and my partner receives around £36k net. They have 3 children 7, 16, & 19 (eldest works full time and 16 year old leaving schooo this summer) he pays £360pm cm, she refuses to increase her work hours however manages a couple of holidays a year, new garden new bathroom etc (we suspect she offers beauty treatments at home) she says he's not declaring all income (he is!!!!) and that because we have a nice lifestyle (yes we are a 2 income household!) that he is at an advantage. Any advice on what may happen here they're at the FDR on Monday she is refusing his counter offer of her having all the house and 20% of his pension. He cannot afford to pay the spousal Maine tenancy she is requesting. Just to add I have 3 children of my own that live with us (7, 9 and 17) all in education. Any experiences like this?!

The court would have to give leave for you to be an intervenor. It may be granted if say you would be impacted financially any divorce settlement.
Spousal mains based on a: need and b: ability to pay. If she's getting UC any SM would be treated as unearned income and deducted £ for £ from her benefits.
Does his proposal allow her to house herself and the minor children?

Hadenoughnow

I'm just confused as to why she is requesting that I be an intervenor?! What is the purpose of this?

She would have to make an application and explain her reasons. You would have the chance to object before a judge decided whether you should intervene.
Is she represented? Unless a solicitor has advised her you should be an intervenor, I suspect her reasons may not be valid but you can only know why when you see an application and supporting statement.

Hadenoughnow

She is using a Mackenzie friend?! She has been unreasonable and difficult every single step of the way, I just hope there's a resolution at the FDR but I'm not sure there will be. What are your thoughts regarding what she is asking for in the settlement?

Normally an intervenor is a party who has a financial interest or a claim of financial interest in assets which one or more of the parties assert to be matrimonial assets.

The most common scenario is when a parent has contributed to a property in which the parties live or all three parties live in the same property.

I can't see how you can be an intervenor based on the information you have given unless you obtained a mortgage with your partner on a property which used to be the former matrimonial home.

However, there are circumstances which may alter the position. As the FDR is on Monday there is little that can be done to improve the current position. The FDR will, if it does as intended, give a firm steer to the parties on what a reasonable settlement will be.

Charles