Ann Richardson, the academic dean of the University of the District of Columbia’s law school, died April 17 at her home in Reston. She was 71.

She had complications from breast cancer, said her son Tim Bishop.

Mrs. Richardson joined the University of the District of Columbia law faculty in 1994. She became a full professor and academic dean in 1998, the position she held at her death.

Ann Leslie Heilemann was born in New Rochelle, N.Y. She was a 1977 honors graduate of Georgetown University. She received a law degree from George Washington University in 1984.

She was chief administrative officer for international operations at the Peace Corps before working in private law practice.

Her marriages to James Bishop and John Richardson ended in divorce.

Survivors include three children from her first marriage, Lyn Bishop of Arlington, Mass., Melanie Briggs of Fairfield, Pa., and Tim Bishop of Berkeley, Calif.; a sister; and four grandchildren.

— T. Rees Shapiro