Doody was elected a township trustee of Bloom Township in 1981, a village trustee for Homewood in 1983, and Village President of Homewood in 1991.[3]
Doody was appointed to the Illinois House of Representatives and sworn into office on September 11, 1995, to succeed Ed Zabrocki, the Mayor of Tinley Park, Illinois, who had been elected in the 1994 elections.[2][1] He was defeated by Democratic candidate Kevin McCarthy in the 1996 general election.[4] Doody explored challenging McCarthy in the 1998 election, but opted out in favor of Maureen O'Hara who was supported by Minority Leader Lee Daniels.[5]
After his 1996 loss, he became a member of the Homewood Public Library Board.[3] In 2002, he became a Circuit Court Judge, a position he would hold until his retirement in 2013.[3]