“A test of real risk of enforceability provides rational and objective justification for discrimination against non-Convention state residents”
“(4) This requires ‘objectively justified grounds relating to obstacles to or the burden of enforcement in the context of the particular foreign claimant or country concerned’ – see Nasser at [61] and Besfort at [51]. (5) Such grounds exist where there is a real risk of ‘substantial obstacles to enforcement’ or of an additional burden in terms of cost or delay – see Bestfort at [77]”