I already busted your theory on RB, islandtime. The articles posted on that site can easily be verified with Lexis-Nexis, which has a complete Montreal Gazette database. Infomart, the site where you searched, does not include articles by freelance journalists.
Do you have access to Lexis-Nexis? Here is a list of the Montreal Gazette and Ottawa Citizen articles in their database that include the name 'Cortellazzi':
73. The Gazette (Montreal, Quebec), March 01, 1999, FINAL, 162 words, Ex-teacher opts for jury trial
74. The Gazette (Montreal, Quebec), December 31, 1998, Thursday, FINAL EDITION, NEWS; Pg. A1 / FRONT, 631 words, Montessori school owner facing charges of fraud, MICHAEL MAINVILLE; THE GAZETTE
75. The Gazette (Montreal, Quebec), September 18, 1998, Friday, FINAL EDITION, NEWS; Pg. A3, 616 words, School checks lacking: parents: More complaints laid against Montessori-school administrator, KATE SWOGER; THE GAZETTE
76. The Gazette (Montreal, Quebec), September 17, 1998, Thursday, FINAL EDITION, NEWS; Pg. A1 / FRONT, 741 words, Montessori operator had fraud conviction, MICHAEL MAINVILLE; THE GAZETTE
77. The Gazette (Montreal, Quebec), September 16, 1998, Wednesday, FINAL EDITION, NEWS; Pg. A5, 330 words, Montessori probe widens, THE GAZETTE
78. The Gazette (Montreal, Quebec), September 12, 1998, Saturday, FINAL EDITION, NEWS; Pg. A3, 403 words, More families stranded: Principal disappears with fees from second school, MICHAEL MAINVILLE; THE GAZETTE
79. The Gazette (Montreal, Quebec), September 10, 1998, Thursday, FINAL EDITION, NEWS; Pg. A3, 449 words, School canceled; money gone, SUE MONTGOMERY; THE GAZETTE
81. The Ottawa Citizen, September 4, 1993, Saturday, FINAL EDITION, BUSINESS; Pg. F2, 188 words, Fraudulent mortgage broker fined after pleading guilty, KRISTIN GOFF; CITIZEN
Nice try, but Cortellazzi's history of fraud is quite real.