TORONTO — The mayor of Canada’s largest city was ordered out of office Monday after a judge found he had flouted conflict-of-interest rules for refusing to repay funds he solicited for his high school football team using city letterhead when he was a councilor.

Mayor Rob Ford blamed ‘‘the left wing politics’’ for the ruling and said he would appeal. The development is the latest in a string of embarrassments for the colorful mayor who has repeatedly found himself in the news since he was elected in 2010.