At common law the proposition that a testator has testamentary freedom is foundational. Yet over time, Ontario’s courts and legislature have recognized that a testator has certain obligations that may trump that freedom. For example, the courts have used legal mechanisms like constructive trusts to protect disinherited spouses. The legislature has also passed laws that provide disinherited spouses with a division of net family property, as well as dependants, like children and common law spouses, with rights to receive support if they were not adequately provided for in the will. A question this seminar is raising is where to draw that line on the restriction of testamentary freedom. Will an Ontario court vary a will when a parent disinherits an adult child? The courts in British Columbia have.