L.E.A.S.E. is a special education joint agreement, commonly referred to as a special education cooperative. In Illinois, joint agreements/cooperatives are established by multiple school districts “to provide needed special education facilities and to employ a director and other professional workers…” (105 ILCS 5/10-22.31) “…for the purpose of providing comprehensive and cost efficient special education services” (Illinois School Code, 2012, p.297).