Robert Mark Roe appealed a lower court decision that upheld his mother's 2005 Will, which disinherited him.
He argued that his mother, Beverly Grace Roe, lacked testamentary capacity due to insane delusions and was unduly influenced by his brother, Rick.
The Court of Appeal affirmed the application judge's findings, concluding that Beverly's beliefs, though at times irrational, had a factual basis, and that she was not unduly influenced.
The court also confirmed that a testator only needs a general understanding of their assets for testamentary capacity.
The appeal was dismissed, and costs were awarded to the respondent Randall Scott Roe.