In 1986, she joined York University's Department of Languages Literatures and Linguistics as a sessional faculty member.
Ehrlich was an area editor for the International Encyclopedia of Human Sexuality[1] in 2015 and has served as a member of the editorial board for Gender and Language[3] since 2005 and Discourse & Society[4] since 1999.
Between 1996 and 2004 she served as the linguistics representative for the Canadian Federation for the Humanities, Aid to Scholarly Publication Programme.
She has also served as an expert witness for the Canadian Human Rights Commission in 1992, 1993, and 1996, as well as for EGAL (Equality for Gays and Lesbians) in 2001.
Her work seeks to identify the underlying prejudices within the language of the legal system, particularly in cases of sexual assault and sexual harassment where linguistic evidence is often the only available evidence and serves to not only describe events, but build or destroy the character of the perpetrator and victim.