What if the person who made the Will was of sound mind and no one unduly influenced them?
If your are the spouse or child of a Testator and they have not adequately provided for you under their will, then under the Wills Variation Act, R.S.B.C. 1996 c.490, you can ask a judge of the Supreme Court of British Columbia to vary the Will to provide you with more. This is a discretionary remedy so whether or not you will be successful will depend on the facts of the case.
