You do require an employment authorization.The time frame may range from one day (i.e., conclusion at the port of entry) to several months (i.e., if validation of the job offer is required. Your nationality, your qualifications, and the existence of a sales contract for the service including such services would also play a factor.
You may conduct an online assessment to determine your eligibility and the duration of the process.
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Campbell,Cohen - attorneys at law
info@canadavisa.com
tel: (514)937-9445; fax: (514)937-2618
http://www.canadavisa.com