Rubuta ci gaba don wannan sakin layi - Daga 1974 zuwa 1976, an tura ta zuwa Ofishin Jakadancin Kanada zuwa Ƙungiyar Tarayyar Turai a Brussels. Daga 1982 zuwa 1986, ta kasance Mashawarci kuma Wakilin Kwamitin Taimako na Ci Gaban Kungiyar Hadin Kan Tattalin Arziki da Ci Gaban a Paris. Daga 1989 zuwa 1992, ta kasance jakada a Kamaru, Chadi da Jamhuriyar Afirka ta Tsakiya. Daga 1993 zuwa 1996, ta kasance jakada a Poland kuma, daga 1996 zuwa 1999, zuwa Rasha, Armenia, Uzbekistan da Belarus. Leahy shi ne Mai Gudanarwa na Tarayya don Ranar Matasa ta Duniya ta 2002
Ka yi haƙuri. Daga 2004 zuwa 2007, ta kasance jakada a Yankin Great Lakes na Afirka. Ta kasance co-shugaban Kungiyar Abokan Babban Lakes na Taron Duniya don Zaman Lafiya, kwanciyar hankali da Ci gaba a Yankin Babban Lakes. Daga 2008 zuwa 2012, ta kasance Jakadan Kanada a wurin Holy See a Rome. Bayan ta yi ritaya, an nada ta a matsayin Mai Gudanar da Canjin Paparoma na Ma'aikatar Harkokin Wajen Kanada a shekarar 2013.