can we file a case against a Canadian citizen...

 Please be kindly informed that according to the data contained in us in your inquiry and with reference to the Federal Civil Transactions Law No. (5) of 1985 amended by Law No. 1 of 1987, in the event that you have residence in Canada or even an Emirati citizen and wish to file a lawsuit against persons residing in the state (Emirates) A ​​lawsuit can be instituted against them in the Emirates against the foreign person for the spatial jurisdiction provided that the parties to the case are present in the state of the UAE in general