Your basic choices in selecting a mortgage include:
Conventional vs. high-ratio mortgages
A conventional mortgage equals no more than 80% of the appraised value or purchase price of the property, whichever is less. A high-ratio mortgage is usually for more than 80% of the appraised value or purchase price. It's often referred to as an NHA mortgage because it is granted under the provisions of the National Housing Act and must, by law, be insured through CMHC or another qualified insurer for which the borrower pays the insurance premium as well as legal fees.
Closed vs. open mortgages
Closed mortgages usually offer lower interest rates than open mortgages of the same term, but open mortgages let you pay off as much as you want, any time, without penalty.