Welcome to Donald Lange's website!
Donald provides civil litigation services to residents and businesses in Haliburton and Muskoka. He has practised exclusively in the area of civil litigation for nearly 30 years, with 20 years of his extensive experience honed in downtown Toronto. He has successfully argued many cases in the Trial Courts and in the Court of Appeal. He has also taught civil litigation courses at the Law Society of Upper Canada for licensing lawyers to practice law and was a research lawyer for the judges of the Court of Appeal.
Donald is the author of a major book on a fundamental doctrine of the court system, The Doctrine of Res Judicata in Canada, 3rd ed. (LexisNexis, 2010, 587 pp.). His book is about lawsuits and explains why a person can only sue once for each case. It is a comprehensive reference source for judges and counsel anaylizing the law of Canada from 1820 to 2010. The book has been quoted by courts and tribunals across Canada, including the Supreme Court of Canada on five occasions, several times by the Ontario Court of Appeal and Ontario Superior Court of Justice, and by all other provincial courts of appeal and provincial trial courts. It has been described as a "highly influential work...which is widely cited and generally relied upon as authoritative in Canadian Courts": Canadian Civil Procedure Law, 2nd ed. (LexisNexis, 2010) at 232. Donald provides expert advice to law firms across Canada on the doctrine of res judicata. Visit Donald's book website at www.resjudicata.ca.
Donald has also been appointed by the Attorney General of Ontario as a Small Claims Court Judge for the Haliburton and Muskoka courts and, in that capacity since 2003, has rendered many reported judgments.
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