As an update, they are providing people who were interrupted during the LSAT-Flex with the following choices.
Cancel your May LSAT-Flex and take the June LSAT-Flex
Cancel your May LSAT-Flex and take the July LSAT-Flex
Cancel your May LSAT-Flex and receive a coupon for a future test
Keep your May LSAT-Flex
As a U of T student who has spoken to a couple of family law lawyers because I am also interested in the field, I would not recommend U of T based on your priorities.
Although it is not the best economic decision, I believe there are cases in which practicing family law after U of T can be feasible. Family law departments within full-service, regional firms and boutiques that practice high net-worth divorce law compensate their associates fairly well. However, I would expect to work long hours and sacrifice work/life balance at these firms —something you're not very interested in doing. Given this, you will be better off going to UVic or UBC (both very well-regarded schools).
Side-note: If you do want to practice family law, just be aware that you will need a thick skin. A family law lawyer said that clients/spouses of your clients can be verbally abusive and even go so far as to send death threats. However, it is very personal, which is what you are looking for.