Cook County Comm. Larry Suffredin (D-13) speaks during a meeting of the Cook County Board of Commissioners Legislation and Intergovernmental Relations Committee on Tuesday.

A years-in-the-making push to tighten and modernize Cook County’s ethics rules is inches from the finish line after a fresh round of tweaks designed to further empower the county’s Board of Ethics and bring county lobbying rules in line with a new state law.