What is the test for maintaining the status quo on an interim custody motion?

Generally, the well-settled rule is that the status quo will be maintained on an interim custody motion in the absence of compelling reasons indicative of the necessity of a change to meet the children’s interests. An assessor’s recommendation ought not to be acted upon without a full trial, unless there are exceptional circumstances where immediate action is warranted by the assessor’s report: Grant v. Turgeon, 2000 CanLII 22565 (ONSC) at paras. 15-17.