GALVESTON — County leaders on Monday backed legislative proposals to curb property appraisal increases, but added a condition of their own. County Judge Jim Yarbrough proposed an amendment to ask state lawmakers to stop handing down unfunded mandates if they’re going to hinder the county’s ability to raise revenue. Several bills before the Legislature would lower the cap on homestead appraisals from 10 percent to 3 percent or 5 percent. Commissioner Ken Clark, the sole Republican on the commissioners court, proposed the resolution. It calls for support of a 3 percent cap on homestead appraisals. The cities of Bayou Vista,...