Are will validity disputes decided by a judge alone or can there be a jury trial in Ontario?

Will validity disputes in Ontario are decided by a judge alone, not a jury. Estate and testamentary matters, including proceedings to prove a will in solemn form, fall within the categories of civil cases that Ontario's court rules exclude from jury trial, reflecting that these cases usually turn on detailed, technical findings about capacity, undue influence, and compliance with legal formalities that are traditionally left to a judge rather than a lay jury.

This is different from some other types of civil litigation in Ontario, such as certain personal injury or contract claims, where a jury trial can be available if a party requests one. In a will dispute, whether the outcome is decided after a full proof-in-solemn-form trial, a motion for summary judgment, or another procedural route, it's always a judge who weighs the evidence, assesses witness credibility, and makes the final ruling on the will's validity. Because the process is judge-alone regardless of how contested or high-value the estate is, parties should focus their preparation on building a clear, well-documented evidentiary record for a judge, rather than the kind of presentation strategy used for a jury.