                         <p:column 
                                headerText="Professional" 
                                sortBy="#{billFee.referenceBillFee.staff.person.name}"
                                filterBy="#{billFee.referenceBillFee.staff.person.name}"
                                filterMatchMode="contains"
                                style="text-align: left;">
                                <h:outputLabel value="#{billFee.referenceBillFee.staff.person.name}" />
                   