Virtually all foreclosures today are based on written recorded instruments purporting to transfer title to the mortgage lien from one legal person to another. The questions for today are different from the questions that were present when the forms, rules and procedures were developed before present claims of securitization of debt. Neil F Garfield, a Florida attorney and investment banker, presents the results of 16 years of research, analysis, trial appearances, expert witness presentations, and CLE presentations. In this modified course presentation, he focuses on the duties of lawyers who use or oppose assignments of mortgage, and the methods that can be used to perform expert analysis.