“In Jasen v. Karassik (2009) 2009 ONCA 245 (CanLII), 95 O.R. (3d) 430, the Ontario Court of Appeal stated that the ISOA [Interjurisdictional Support Orders Act, 2002, S.O. 2002, c. 13] was not a “complete code”. The court found that an Ontario resident is not required to bring an application for support or variation of a support agreement under ISOA if the other party is a non-resident. They have a choice to bring the application under ISOA or the Family Law Act (FLA). If brought under the FLA, then they are required to effect service ex juris and show that Ontario has a real and substantial connection to the subject matter of the application.”