Possession of Passports and Leaving Country With Minors: If I have always been my baby's sole carer, and my husband refuses to let me fly to Canada to visit my family for a while, can I do so if I have the passports?

You may succeed in leaving the country, but possessing passports does not entitle you to remove them from Israel without your husband's consent. He could bring Hague Convention proceedings for the baby's return if you stay on.