exhibit 10. 28assignment and assumption agreementthis agreement is made the 1st day of april, 2019, among : bcimc ( college ) us realty inc., a corporation formed under the laws of canada ( “ college corp ” ) and : bcimc ( municipal ) us realty inc., a corporation formed under the laws of canada ( “ municipal corp ” ) and : bcimc ( public service ) us realty inc., a corporation formed under the laws of canada ( “ public service corp ” ) and : bcimc ( wcb ) us realty inc., a corporation formed under the laws of canada ( “ wcb corp ” ) and : bcimc ( hydro ) us realty inc., a corporation formed under the laws of canada ( “ hydro corp ” ) and : bcimc ( wcbaf ) realpool global investment corpoaration, a corporation formed under the laws of canada ( “ wcbaf corp ” and collectively with college corp, municipal corp, public service corp, teachers corp, wcb corp and hydro corp, the “ vendors ” and “ vendor ” means any one of them ) and : 1 exhibit 10. 28 exhibit 10. 28 assignment and assumption agreementthis agreement is made the 1st day of april, 2019, among : bcimc ( college ) us realty inc., a corporation formed under the laws of canada ( “ college corp ” ) and : bcimc ( municipal ) us realty inc., a corporation formed under the laws of canada ( “ municipal corp ” ) and : bcimc ( public service ) us realty inc., a corporation formed under the laws of canada ( “ public service corp ” ) and : bcimc ( wcb ) us realty inc., a corporation formed under the laws of canada ( “ wcb corp ” ) and : bcimc ( hydro ) us realty inc., a corporation formed under the laws of canada ( “ hydro corp ” ) and : bcimc ( wcbaf ) realpool global investment corpoaration, a corporation formed under the laws of canada ( “ wcbaf corp ” and collectively with college corp, municipal corp, public service corp, teachers corp, wcb corp and hydro corp, the “ vendors ” and “ vendor ” means any one of them ) and : assignment and assumption agreement this agreement is made the 1st day of april, 2019, among :