Portal Access Rental Forms Contact MGR Property Management 3800 E Concours St Suite 100 Ontario, CA 91764 (909) 581-6600 DRE License #: 01841920 MGR Real Estate 3800 E Concours St Suite 350 Ontario, CA 91764 (909) 581-6600 DRE License #: 01841921 VENDOR (800) 777-7MGR ...