[3] As President of the American Bar Association, undertook a variety of projects including In total, Greco created two commissions, five task forces, and several other special committees.

Following the September 11, 2001, terrorist attacks in the US, he served on the ABA Task Force on Terrorism and the Law, and helped develop policies relating to the imperative of balancing national security and constitutional freedoms so that both are protected.

William Weld's Massachusetts Judicial Nominating Council, and in 1993-94 served on Senator Edward M. Kennedy and Senator John F. Kerry's Special Commission on Federal Judicial Appointments that recommended candidates for vacancies on the federal bench, US Attorney and US Marshal.

In the spring of 2006, President Greco created a blue ribbon task force in order to address the issue that President Bush, instead of vetoing bills passed by Congress that he finds objectionable, signs the bill, but attaches statements that indicates intentions not to follow certain provisions.

Greco and the ABA responded to this by saying that the president's signing statements revoke Congress's constitutional authority to check and balance the executive power.

[8] Michael Greco spent his youth in Hinsdale, Illinois, and has resided in Wellesley, Massachusetts, for the past forty years.