I know a few lease companies are much concern, if you have any job regardless of credit history, even if you are coming from any other country than USA. However, these companies would be strict enough on asking to job letter from the employer.
When you are in Canada, the first thing you must have is a credit card, and most of the banks like Scotia, TD are now offering CC for $500 limit. Pay your bills on time and if possible make full payment of CC before the interest start to incurred.
Email me at info@link2canada.ca for your accommodation arrangements, if you are looking for or visit http://www.link2canada.ca/Settlement-Mortgages.htm for list of some possible options renting.