Homestead Property Tax Exemptions for Classroom Teachers, Law Enforcement Officers, Firefighters, Emergency Medical Technicians, Paramedics, Child Welfare Professionals, and Servicemembers; Specifies information that must be supplied annually to property appraiser by specified professionals who qualify for specified exemption; provides conditions under which those specified professionals may receive additional homestead property tax exemption; specifies amount of homestead property tax exemption; provides requirements for applying for & receiving exemption; specifies actions property appraiser may take if taxpayer improperly claims exemption; provides penalties under certain conditions; requires Legislature to appropriate moneys to offset reductions in ad valorem tax revenues experienced by fiscally constrained counties due; specifies procedures for distributing such moneys.