The Ontario Superior Court Of Justice's decision in CIBC Mortgages v. Computershare and its interpretation of the principle of the Deferred Indefeasibility of Title. Author: Simon Crawford. Simon presented the linked seminar to members of the Canadian mortgage lending community for the First Canadian Title Lender Roundtable Series.  View presentation on Slideshare: Crawford on Deferred Indefeasibility and Mortgage Priorities.