Broward housing experts said they will create a public “scorecard” within the next few months that will help local government keep track of their efforts to tame the affordable housing crisis — and see how neighboring cities fare. Ralph Stone, Broward County’s director of the Housing Finance Division, said cities are being encouraged to “engage in helping resolve their own affordable housing demand.” The idea: Cities participate in the growing effort to create housing for the families with the least means to pay for it. The problem has become pronounced each year as properties have become more unattainable for lower-income workers.