GM Management, Inc. has been offering the most personalized service in the HOA Management Industry for more than 20 years. We provide a weekly physical presence on site at all of our associations. Our office, located in Simi Valley, is open Monday through Friday from 9:00 a.m. to 5:00 p.m. Our clients always have access to their HOA account manager during business hours and can contact any one of the four managers on our staff 24 hours a day for emergencies.