No she hasn't at this stage. She's in the process at the moment of forcing the sale of her house with her former partner with a view to gaining 50% of the mortgage surplus (about £12k) and investing that in our property and becoming named on the mortgage.
Also I should mention, I bought a flat in 2012 for £90k which I rent out and I have a £75k mortgage on this and so would like to know if this is vulnerable as well?
In case this is relevant - I have a son and she has 2 daughters. She works part time for about £450pm, I take home about £2300pm and we have a joint bank account which pays for all our expenses.
Let me know if you need further info.