“The midpoint of the Spousal Support Advisory Guidelines (SSAG) ranges should not be treated as the default amount for spousal support. The court is required to consider the support factors and objectives found in the Divorce Act and the Family Law Act; the strength of the recipient’s compensatory claim; the recipient’s need; property division and debts; and the payor’s needs and ability to pay: Mason v. Mason, 2016 ONC 725, 132 O.R. (3d) 641, at para. 199.”