Veteran Bay Area attorney Joanne Garvey, a pioneer among female lawyers in California, died of cancer Friday at her home in Kensington. Ms. Garvey practiced business and tax law for most of her 52-year career and argued a case before the U.S. Supreme Court in 1994. In a statement from the group's 40th anniversary celebration, current President Neda Mansoorian said, "California Women Lawyers benefited profoundly from the historic and groundbreaking work of our founding mother, Joanne Garvey - a feminist visionary, a trailblazer." Ms.