The moderating effects of biological gender on the relationships between mentoring and career attainment were explored among legal professionals. Research results indicated that male and female lawyers were equally likely to have senior male mentors. However, senior male mentors were associated with higher career attainment only for female lawyers. Compared to male lawyers with senior male mentors, female lawyers with senior male mentors had higher compensation, higher career progress satisfaction, and were more likely to be partners or senior executives. The authors highlight the importance of simultaneously considering mentor gender and position, when studying the role of mentoring and gender in career attainment, contributing to the literature on the career development of women in the legal profession and in male-dominated professions, in general. (Contains 3 tables and 1 figure.)