Jennie O’Leary Madsen serves as President of Property Management Operations at Apartment Management Consultants (AMC), the seventh-largest apartment management firm in the U.S.. Having risen through the ranks over 21 years at AMC, O’Leary Madsen now oversees a vast portfolio of approximately 156,000 units across 25 states. Under her leadership, the firm has achieved significant organic growth, onboarding 133 new communities and 21,825 units in the last 12 months alone. Her strategic agility allowed AMC to outperform 22 of 28 tracked regional markets in 2025, even during one of the most challenging periods for the sector. O’Leary Madsen is currently driving a major modernization effort at AMC, implementing enterprise-wide technology upgrades and a corporate rebranding while maintaining peak operational performance. She is the primary contact for AMC’s largest clients and is instrumental in adjusting policies to comply with evolving state legislation. A passionate mentor, O’Leary Madsen frequently travels to different regions to provide guidance to onsite teams and serves as a spokesperson at national forums, such as the NMHC Emerging Leaders Forum. Her ability to balance the company's heritage with innovative structural enhancements marks her as an extraordinary executive leader.