CMHC is the least of your worries as the lender submits the deal to them for approval. Normally the lenders or banks have tighter guidelines than CMHC so the lender can be assured of CMHC insurance when they submit the deal.

Unless the conditions are not met within the specified time period and no there extenuating circumstances happen before closing, you should be able to get the mortgage. Issue is if they call your company and what you presented as your income is not the same as what company told the underwriter, they may decline you. If they suspect that the documents are fake, they may also decline you. You need to make sure that all conditions are lifted before the date it is due to avoid issues.

All approvals from the lenders come with some conditions. The conditions are usually that you or your lawyer provide the lender with documents to support the mortgage application submitted to them. It may be documents to support: income or down payment. It might also be appraisal or proof that your debts are paid down as per the application. Your Mortgage Agent must tell you what those conditions are so you know weather you can fulfill them or not. Good luck.