Former Chicago Inspector General Joe Ferguson appears on “Chicago Tonight” on Dec. 12, 2023. (WTTW News)

Joe Ferguson spent 12 years as the corruption-busting watchdog of Chicago government — proving to be a thorn in the side of both the Emanuel and Lightfoot administrations.

A residential street in Chicago’s Albany Park neighborhood. (WTTW News)

In a typical year, approximately 3% of property owners do not pay their taxes, according to Chicago officials. But in 2021, a projected 10% of property owners won’t pay their tax bills, which would cost the city $65.2 million.