Toronto, December 22, 2017 - Mainstreet Health Investments Inc. (to be renamed Invesque Inc.) (TSX:HLP.U) (the "Company") announced today it has entered into subscription agreements (collectively, the "Subscription Agreement") with certain funds managed by Magnetar Financial LLC (collectively, "Magnetar"), in respect of the issuance of class A convertible preferred shares of the Company (the "Preferred Shares") for aggregate gross proceeds of US$54 million (the "Investment").