have you instructed a solicitor about the issue yet? are they willing to take the matter on a conditional fee agreement of some sort? normally the ATE Insurance is self-insured on PI claims, but i don't really have much experience of dealing with contesting wills and the funding for that. Eddie's guess of a premium of £60,000 is, IMO, way out though. For PI claims that cover up to £100,000, the premium is no more than £6,000 in the worst case scenarios and often the premium paid can be lower than £1,000. But like i say, that's on pi matters. Generally though, the defendant's insurers pay the premium as its claimed as part of the costs so our clients don't have to pay the premium, its only payable if the claim is won, and then recovered from the other side (again - in PI matters). Speak to your solicitor, they should be able to explain the way it works as each ate insurer works differently too.....