Prior to attending law school, Hamersley earned Bachelor of Business Administration and MBA degrees from Florida International University.

[2][3] KPMG categorically denied Hamersley's allegations stating that the conclusions in his Senate Finance Committee testimony are "simply wrong."

[4][5] Hamersley assisted the United States Senate Homeland Security Permanent Subcommittee on Investigations in its examination of the KPMG tax shelters, which culminated in a two-day hearing [6] and a voluminous report[7] detailing the nature of the KPMG's tax shelter activities.

In June 2006 he was a candidate for the U.S. Congress in California's 4th congressional district,[15][16] obtaining third place in the Democratic party primary with 20.1% of the vote.

[18][19] Doolittle did not seek reelection in 2008 after his home was raided by the FBI in an alleged political corruption investigation.