Get Canadian Medical as it can take a few months
You will need to do PSTAR(pre-solo) exam. and Radio Exam.
Do commercial Written Exam and Flight test.
Do a multi engine flight test (If you don't have 50 mpic or it has been more than a since your initial multi ride)
Then Do INRAT (IREX) and do a IFR ride in Multi.
When you get 750 hours then you can write ATPLs (only 2 exams and it's good for only 2 years) You will need 1500TT but copilot time only counts as half.
http://www.tc.gc.ca/civilaviation/ge...sonnel/faq.htm
If you can get your FAA IR valid, it will be simple conversion exam.
http://www.faa.gov/education_researc...A-G-8082-2.pdf