Leadership at North Portfolio
Here, service is professional and personal. Representing Bellagio, ARIA, Vdara, The Cosmopolitan of Las Vegas and Park MGM, the North Portfolio leadership team is here to create a seamless experience so you can focus on driving your business.
Tyler Stewart
Stewart provides strategic vision, leadership and operational oversight for all sales, convention services and catering/events functions across Bellagio, ARIA, Vdara, The Cosmopolitan of Las Vegas and Park MGM. With more than 20 years of hospitality sales leadership experience, including a strong track record at ARIA and Vdara, Stewart brings deep market expertise and a results-driven approach that will further strengthen the luxury positioning and group performance of these properties. A proud Detroit sports enthusiast, Tyler enjoys golfing, traveling, and spending time with his two miniature Australian Shepherds, Brodi and Remi.
Executive Director of Group Sales, West Territory North Portfolio – Bellagio, ARIA, Vdara, The Cosmopolitan of Las Vegas & Park MGM
Paul Buchheit, CMP
A sales professional with over 20 years of experience throughout the Las Vegas Strip, including leadership positions at multiple MGM Resorts properties, Buchheit leads the sales team for the West Territory. He prides himself on a passion for the hospitality business that started with a foundation built from the Walt Disney World College Program and continued through Harrah’s College of Hospitality at UNLV. Paul has been the Chair within the Social Impact and Sustainability Committee which focuses on three goals of Fostering Diversity, Equity and Inclusion, investing in our Community and Protecting the Planet. In his time away from work, he enjoys playing guitar, listening to music and spending time with his family.
Executive Director of Group Sales, Central Territory North Portfolio Bellagio, ARIA, Vdara, The Cosmopolitan of Las Vegas & Park MGM
Liz Aiello
Liz is an accomplished hospitality sales leader with more than a decade of experience driving revenue growth and leading high-performing teams across MGM Resorts. Since beginning her career with MGM Resorts in 2012 at Mandalay Bay, she has advanced through multiple sales leadership roles at MGM Grand before joining The Cosmopolitan of Las Vegas as Executive Director of Hotel Sales. Today, she leads the North Portfolio Central Territory. Known for her collaborative leadership style, strategic mindset, and results-driven approach, Liz is passionate about developing talent, fostering cross-functional alignment, and creating exceptional experiences for both clients and teams. Outside of work, she enjoys spending time with her husband, two sons, and family pets, as well as cooking, hiking, and traveling.
Executive Director of Group Sales, East Territory North Portfolio Bellagio, ARIA, Vdara, The Cosmopolitan of Las Vegas & Park MGM
Jamie Malloy, CMP, CHSL
With 26 years of experience in Hotel Sales, Jamie is a seasoned professional known for her creativity, passion for learning, and commitment to elevating the guest and team experience. She currently serves on the HSMAI Sales Advisory Board and is a past President of the Las Vegas Hospitality Association, actively contributing to the growth and visibility of Las Vegas as a world-class meetings destination. At Bellagio, MGM Resorts International’s flagship property, Jamie takes great pride in representing a brand defined by luxury, sophistication, and world-renowned service. She thrives on connection, relationship-building, and creating meaningful moments that leave a lasting impact on clients and colleagues alike.
ARIA and Vdara | Executive Director of Catering Events and Convention Services
David Robinson
A seasoned hospitality professional with over 38 years of experience in luxury hotel catering, banquets, and event operations. David leads a team of Catering professionals at ARIA and Vdara who execute world-class events at one of the premier, ultra-luxury resort destinations in Las Vegas. David has held leadership roles at esteemed brands such as Four Seasons, The Ritz-Carlton, and Park Hyatt, overseeing high-profile corporate functions, nonprofit galas, luxury weddings, and bar/bat mitzvahs. His expertise lies in event execution, team leadership, and operational excellence, ensuring seamless guest experiences that align with the highest luxury hospitality standards. David's dedication to excellence, team development, and guest experience has made him a recognized leader in the luxury hospitality industry. The following quote has been a moral compass for as David he has navigated his journey in his day-to-day life and in his hospitality career.
Bellagio | Executive Director of Catering Events and Convention Services
Chris Vernicek, CMP
With over 28 years of experience in luxury hotel catering and banquet operations, Chris is a seasoned hospitality leader known for delivering exceptional guest experiences through high-touch, flawlessly executed events. As head of the Catering, Event & Convention Services team at Bellagio, he oversees world-class meetings and social functions that set the standard for excellence in Las Vegas. His career includes leadership roles with Hyatt Hotels & Resorts in Greenwich, New York City, and Las Vegas, where he produced high-profile corporate events, non-profit galas, and luxury weddings, all with a detail-driven and creative approach. Chris is passionate about cultivating a collaborative team culture that empowers his staff to exceed expectations while maintaining the elevated service standards of luxury hospitality. His commitment to service excellence, team development, and innovation continues to make him a key contributor to Bellagio’s success and reputation as one of MGM Resorts International’s flagship properties.
The Cosmopolitan of Las Vegas | Executive Director of Catering Events and Convention Services
Lee Nakahara
With more than 20 years of hospitality experience, Lee has built a distinguished career in hotel operations, convention services, and event leadership across MGM Resorts International. After beginning his career at Mandalay Bay in 2000, he transitioned into Convention Services and later advanced into leadership roles at MGM Grand, overseeing convention operations for MGM Grand, The Signature, New York-New York, and Excalibur. Today, as Executive Director of Conferences and Events at The Cosmopolitan of Las Vegas, Lee leads strategic planning and execution for meetings and events at one of Las Vegas’ premier luxury destinations. A graduate of the UNLV William F. Harrah College of Hospitality, Lee is passionate about mentorship, hospitality leadership, and delivering exceptional guest experiences.
Park MGM | Executive Director of Catering Events and Convention Services
CheFawn Holland, CMP
CheFawn Holland is a hospitality leader with extensive experience in conferences, events, and luxury guest experiences across MGM Resorts’ Las Vegas portfolio. As leader of Conferences & Events at Park MGM, she oversees a team focused on delivering seamless, personalized meetings and events that reflect the resort’s modern luxury style and guest-centered approach. Known for her collaborative leadership style and attention to detail, CheFawn partners closely with operations, culinary, and resort teams to create elevated experiences tailored to each client’s vision. A Certified Meeting Professional (CMP) and Certified Professional in Catering & Events (CPCE), she is passionate about team development, service excellence, and creating meaningful event experiences.