success occurred in 1972 when as counsel for Canadian National Railway and Canadian Pacific Railway and their subsidiaries he appeared before the Ontario Municipal Board in a six-week contested hearing that resulted in the change of the official plan for all of the railway use lands around Union Station from Yonge Street to Bathurst Street (185 acres) to a high density mix of residential, commercial, entertainment, hotels, sport centres and other uses including construction of the CN Tower. That official plan is the basis for years of enormous development on the lands - lands then and now worth billions of dollars. It was the largest official plan change in the history of Canada. Literary activities Two of Rohmer's better-known novels are Ultimatum and Separation. Ultimatum, published in 1973, features political, economic, and energy crisis themes as well as the author's opinion about the viability of the Canadian nation. It is Rohmer's most popular novel and it was the best-selling novel in Canada in 1973. Three years later, Rohmer published Separation, a novel with domestic and international political themes surrounding the ambition of Quebec separatists to establish the Canadian province as a separate nation. It stayed on the Toronto Star's best-seller list for 22 weeks. Separation was made into a television movie in 1977, and aired on the CTV network. Barry Morse was cast for a brief appearance as the British prime minister. He is a well known Canadian author of both fiction and non-fiction. Throughout his literary career he has published over thirty books. His most recent non-fiction is The Building of the CN Tower published 2011 by RailCore Press Inc. of which he is president. His most recent novel, Ultimatum 2 was published early 2007. It fictionalizes a confrontation between the US and Russia against Canada over the building of an international high level nuclear waste disposal site in Arctic Canada. The second edition of his historical novel on the 1866–67 Canadian negotiations with the British for autonomy under the British North American Act is Sir John A's Crusade and Seward's Magnificent Folly. Rohmer chaired the Royal Commission on Book Publishing in 1971–72. Volunteer work He was twice chancellor of the University of Windsor, serving a total of 13 years. In 1978, he negotiated the donation of Conrad Black's collection of Duplessis papers in exchange for an honorary degree. He was a charter member of his local (Don Mills)