Hi, for office job, i will suggest you to first make your resume as per north american standards and then visit appleone , http://www.appleone.ca/
, it is located near square one mall. Nursing is a regularised occupation and you will have to do some bridging cource. OSAP is also available for you if you want to follow the profession of Medical Receptionist, Administrative Assistant at a medical centre. Accountancy is entirely a different field.
You may find these sites interesting :-
http://www.healthcarejob.ca/homePage
http://toronto.en.craigslist.ca/hea/
http://www.wowjobs.ca/BrowseResults.aspx?q=Medical+Assistant&s=r&l=Toronto%2C+ON