What educational institution? Does the employer have an approved LMIA? If not, They need to apply for one & they need to prove that no Canadian can do the job. They need to complete a market assessment on why hiring your wife will allow them to expand & hire more Canadians. This will take months (6+). Once the LMIA is approved then she applies for a closed work permit. Current processing times for just the work permit is 22 weeks & doesn’t include processing time for the LMIA.