If you make your will while under a mistake, will a testamentary slip up mean you do not have testamentary capacity?

Mistake and testamentary capacity

In the recent case of Ball v Ball the Claimants tried to argue that their mother’s will was invalid because she made a mistake – or rather that she made her will while under a mistaken belief, and lacked testamentary capacity as a result. The argument in this case failed – but it’s interesting to consider the question of whether a mistaken belief can invalidate a will. A reminder about testamentary […]