Women at Pittsburgh's second-largest law firm are paid less than men for the same work, rarely get promoted and work in an environment in which the sexual interest of male bosses affects their advancement prospects, according to a lawsuit filed Monday in U.S. District Court. A study released in October by researchers at Temple and the University of Texas found a double-whammy for women at 200 large law firms. The study, directed by Marina Angel, professor at Temple's Beasley School of Law, found women were less likely to be promoted from associate to partner and earned less once they got there.